Block declaration step is the second substep of the attack step.
Details
During the block declaration step, the non-active player specifies a blocking creature. Any abilities that trigger on blocking trigger. Also, if a creature is put into the battle zone while being blocked, it is considered a blocked creature, but in terms of triggered events and effects it is not treated as a blocked creature.
Rulings
From the Duel Masters - General Game Rules: Version 1.20 (July 17, 2020)
- 507. Block Declaration Step
- 507.1. The nonactive player specifies a blocking creature.
- 507.1a The nonactive player may choose one of their creatures to block the attack. The creature must be able to block properly in order to be chosen. It must have Blocker ability and has to be untapped. If the creature has some condition to be able to block, it can’t block unless the condition is met. It is not possible to block creature which cannot be blocked.
- 507.1b The chosen creature becomes a blocking creatue. It remains a blocking creature until it's removed from the attack or until the end of attack step, whichever comes first.
- 507.1c The nonactive player taps the chosen creature.
- 507.1d The attacking creature becomes a blocked creature. It remains a blocked creature until it's removed from the attack or until the end of attack step, whichever comes first. A creature remains blocked even if all the blocking creature is removed from the attack.
- 507.2. Any abilities that trigger on blocking trigger.
- 507.2a If an ability triggers when a creature with certain characteristics blocks, it will trigger only if the creature has those characteristics at the point a blocker is declared, or at the point an effect causes it to block. If an ability triggers when a creature with certain characteristics becomes blocked, it will trigger only if the creature has those characteristics at the point it becomes a blocked creature. If an ability triggers when a creature becomes blocked by a creature with certain characteristics, it will trigger only if the latter creature has those characteristics at the point it becomes a blocking creature. None of those abilities will trigger if the relevant creature’s characteristics change to match the ability’s trigger condition later on.
Example: A creature has the ability "Whenever this creature becomes blocked by a light creature, destroy that creature at the end of attack." If it becomes blocked by a darkness creature, even if it changes to a light creature, the ability will not trigger.
- 507.2b An ability that reads “Whenever a creature attacks and isn’t blocked” triggers if no creature was declared as a blocker for that creature. It won’t trigger if the attacking creature is blocked and then the blocking creature is removed from the attack.
- 507.2c If any abilities that trigger for the active player are modal, the active player chooses the modes at the time of the trigger.
- 507.2d After that, the active player resolves their pending abilities in any order.
- 507.2e If any abilities that trigger for the nonactive player are modal, the nonactive player chooses the modes at the time of the trigger.
- 507.2f After that, the nonactive player resolves their pending abilities in any order.
- 507.2a If an ability triggers when a creature with certain characteristics blocks, it will trigger only if the creature has those characteristics at the point a blocker is declared, or at the point an effect causes it to block. If an ability triggers when a creature with certain characteristics becomes blocked, it will trigger only if the creature has those characteristics at the point it becomes a blocked creature. If an ability triggers when a creature becomes blocked by a creature with certain characteristics, it will trigger only if the latter creature has those characteristics at the point it becomes a blocking creature. None of those abilities will trigger if the relevant creature’s characteristics change to match the ability’s trigger condition later on.
- 507.3. If a creature is put into the battle zone while being blocked, it is considered a blocked creature, but in terms of triggered events and effects it is not treated as a blocked creature.
- 507.1. The nonactive player specifies a blocking creature.
From the Duel Masters - General Game Rules: Version 1.20 (July 17, 2020)
- 507. ブロッククリーチャー指定ステップ
- 507.1. 非ターン・プレイヤーはブロッククリーチャーを指定します.
- 507.1a 非ターン・プレイヤーは, どのクリーチャーがブロックするかを選びます(この選択は任意です).選ぶクリーチャーは適正にブロックできる状態でなければいけません.ブロッカー能力を持ち, アンタップ状態でなければいけません.ブロックするために何らかの条件を必要とするクリーチャーは, その条件を満たせない状態でブロッククリーチャーとして指定することができません.「ブロックされない」能力を持つクリーチャーを適正にブロックできるクリーチャーは存在しません.
- 507.1b 選ばれたクリーチャーはブロッククリーチャーになります.「その攻撃」から取り除かれるか, または攻撃終了ステップまで, それはブロッククリーチャーであり続けます.
- 507.1c ターン・プレイヤーは選んだクリーチャーをタップします.
- 507.1d ブロッククリーチャーにブロックされた攻撃クリーチャーは, 「ブロックされたクリーチャー」になります.ブロッククリーチャーが存在しないクリーチャーは「ブロックされなかったクリーチャー」になります.「その攻撃」から取り除かれるか, または攻撃終了ステップまでそのままの状態であり続けます.それをブロックしたクリーチャーが「その攻撃」から取り除かれたとしても, ブロックされたクリーチャーはブロックされたままです.
- 507.2. その後, ブロッククリーチャーが指定されたことによって誘発する能力が誘発し, 効果が全て待機状態となります.
- 507.2a 特定の特性を持つクリーチャーがブロックしたときに誘発する能力は, そのクリーチャーがブロッククリーチャーとして指定された, あるいは何らかの効果によってブロックした時点でその特性を持っていなければ誘発しません.特定の特性を持つクリーチャーがブロックされたときに誘発する能力は, そのクリーチャーがブロックされたクリーチャーになった時点でその特性を持っていなければ誘発しません.クリーチャーが特定の特性を持つクリーチャーによってブロックされたときに誘発する能力は, 後者のクリーチャーがブロッククリーチャーになった時点でその特性を持っていなければ誘発しません.これらの能力は, その後でクリーチャーの特性が変化して条件を満たすようになったとしてもそのときに誘発することはありません.
- 507.2a 特定の特性を持つクリーチャーがブロックしたときに誘発する能力は、そのクリーチャーがブロッククリーチャーとして指定された、あるいは何らかの効果によってブロックした時点でその特性を持っていなければ誘発しません。特定の特性を持つクリーチャーがブロックさ:::れたときに誘発する能力は、そのクリーチャーがブロックされたクリーチャーになった時点でその特性を持っていなければ誘発しません。クリーチャーが特定の特性を持つクリーチャーによってブロックされたときに誘発する能力は、後者のクリーチャーがブロッククリーチャーになった時点でその特性を持っていなければ誘発しません。これらの能力は、その後でクリーチャーの特性が変化して条件を満たすようになったとしてもそのときに誘発することはありません。:::例:「このクリーチャーが光のクリーチャーによってブロックされるたび、そのクリーチャーを攻撃終了時に破壊する。」という能力を持つクリーチャーがいるとき、このクリーチャーが闇のクリーチャーでブロックされたあと、そのクリーチャーが光に変わったとしてもこの能力は誘発しません。
- 507.2b 「クリーチャーが攻撃してブロックされなかったとき」という能力は、そのクリーチャーのブロッククリーチャーが指定されなかった場合に誘発します。ブロックされた後でブロッククリーチャーが「その攻撃」から取り除かれたとしても誘発しません。
- 507.2c 発する能力には任意で使用をすることができるものがあります。使用する場合、まずターン・プレイヤー側が使用するものをすべて宣言します。
- 507.2d その後、ターン・プレイヤーの待機状態の効果を好きな順番で処理します。
- 507.2e 非 ターン・プレイヤー側の、任意で使用をする誘発能力の宣言を行います。
- 507.2f その後、非ターン・プレイヤーの待機状態の効果を好きな順番で処理します
- 507.3. クリーチャーがブロックした状態でバトルゾーンに出る場合、それは「ブロッククリーチャー」ですが、誘発イベントや効果の面では「ブロックした」としては扱いません。
- 507.1. 非ターン・プレイヤーはブロッククリーチャーを指定します.
Untap Step ● Draw Step ● Charge Step ● Main Step ● Attack Step ● End Step
Attack Declaration Step ● Battle Step ● Block Declaration Step ● Direct Attack
End of Attack Step ● Start of Turn Step ● Proceeding to the Next Turn
Keyword Actions
Awaken ● Battle ● Block ● Break ● Cast ● Charge ● Cross
Destroy ● Discard ● Dragsolution ● Expand ● Forbidden Liberate
Fortify ● Gachinko Judge ● Generate ● Gacharange Summon ● Link ● Reveal ● Seal
Search ● Shuffle ● Summon ● Switch ● Tap ● Trigger ● Upside Down ● Use
Other Terms
Attack ● Active Player ● Draw ● Defending Player ● Equip ● Flip ● Ignore ● Instead ● Leave
Look ● Mana ● Number ● Object ● Opponent ● Owner ● Player ● Summoning Sickness
Characteristic
Ability ● Artist ● Card Illustration ● Card Name ● Card Number
Card Rarity ● Card Type ● Cost ● Civilization ● Mana Cost ● Mana Number
Power ● Race ● Soul ● Subtype ● Summon Cost ● Supertype
Category
Name Category ● Race Category
Card Frame
Old Frame ● New Frame
Silver Frame ● Metal Frame
Full Frame ● Full Frame Foil
Block Icon
PS Icon ● E1 Icon ● E2 Icon ● E3 Icon ● DS Icon
Other
Ability Words ● Back ● Flavor Text ● Keywords
Reminder Text ● Text ● Timeline ● Forbidden Characters
Dragheart Creature ● Dragheart Fortress ● Dragheart Weapon
Evolution Creature ● Evolution Cross Gear
Evolution Dragheart Creature ● Evolution Exile Creature ● Evolution Psychic Creature
Exile Creature ● Final Forbidden Creature ● Final Forbidden Field ● Forbidden Core ● Forbidden Creature
Forbidden Field ● Forbidden Impulse ● Gacharange Creature ● Happiness Field ● Moonless Night Field
Mono Artifact ● Neo Creature ● Neo Evolution Creature ● Neo Gacharange Creature ● Orega Aura
Psychic Creature ● Psychic Field ● Psychic Super Creature
T2 Field ● Ceremony of Zeron ● Zeron Creature ● Zeron Nebula
Lists of Card Types
List of Dragheart ● List of Exile Creatures ● List of Psychic CreaturesMain Zones
Battle Zone ● Deck ● Graveyard
Hand ● Mana Zone ● Shield Zone
Side Deck Zones
Hyperspatial Zone ● Super Gacharange Zone
Other Zones
Anywhere Zone ● Bottom of Deck ● Top of Deck
Top of Evolution Creature ● Zone other than the battle zone ● Collection
Under
Under a Creature ● Under Evolution Creature
Under this field ● Under a Deck ● Under a Shield
Zone Types
Public Zone ● Private Zone
Cycle ● God
Monocolored ● Multicolored
Multiple Races ● No Race
Special Race ● Vanilla
Category
Name Category ● Race Category
Hall of Fame
(History / Timeline / Reasons)
Cheating ● Errata ● Metagame (summary) ● Stalling ● Restricted Card
March 25, 2017 Rules revision
Tournament Formats
Block Constructed ● 2 Block Constructed
After Generate League
Special Restriction
Hall of Fame Zero Duel ● 10 Races Deck Battle
Mega Deck Duel 7 ● Zero Civilization King Finals
Monocolored Tournament
Sealed
Limit 10 ● Tokkyu 8 ● Booster Draft
Prebuilt Decks
Super Deck Zero Duel ● Start Deck Champion Finals
Events
Duel Road ● Due Festival ● Duema Festival
Certified Grand Prix ● Certified Judge Test ● Official Tournament
Championship ● Challenge Cup ● Super CS
Adds Civilization ● Adds Race ● Alternate Win ● Alternative Cost
Attack Bend ● Basic Card ● Cantrip ● Card Discard ● Chump Block
Cost Reduction ● Deck Manipulation ● Degenerate ● Diamond State
Draw Engine ● Draw Lock ● Draw Source ● Draw Spell
Extra Turn ● Finisher ● Graveyard Fertilizer ● Graveyard Summon
Hand Addition ● Hand Change ● Increase Power
Infinite ● Infinite Attacker ● Infinite Blocker
Mana Acceleration ● Mana Burn ● Mana Curve ● Mana Summon
Opponent Reliance ● Peeping ● Prevents Attack ● Prevents Defeat
Reset ● Resistance ● Reverse Fury Charge ● Reverse Slayer ● Shield Addition
Shield Burn ● Shield Change ● Shield Peek
Suicide ● Skip the rest of the turn ● Trample
Unattackable ● Unblockable ● Unchoosable
Vigilance ● Win All Battles ● 3D Dragsolution
Cards that can be put into the Battle Zone at the start of the game
Recovery (Salvage)
Graveyard Recovery ● Mana Recovery ● Shield Recovery
For No Cost
Madness ● Reanimate ● Recruit ● Shield Trigger creature
Removal
Blocker Based Removal ● Bounce ● Can Attack Untapped Creatures
Card Based Removal ● Decrease Power ● Fixed Removal ● Force Battle ● Mass Removal
Power Based Removal ● Reset ● Sealing ● Self Removal ● Tap In ● Tap and Destroy
Deck Feed ● Graveyard Feed ● Mana Feed ● Shield Feed
Advantage (Merit)
Disadvantage ● Board Advantage ● Field Advantage
Hand Advantage ● Information Advantage ● Mana Advantage
Tempo Advantage ● Time Advantage ● Suppression
Demerits
Can't Attack ● Can't Block
Attack if Able ● Block if Able
Alternate Loss Condition
Characteristic support
Cost 1 ● Cost 9
Last 3 Digits
Power 6000 or more ● Power 12000 or more
4 or more of this card in your deck ● Activation Cost ● Additional Cost ● Attacking Creature
Can't be destroyed ● Choose a race ● Color Accident ● Concept ● Consists of ● Counter
Dead Card ● Deck Building ● Deck Compression ● Designer's Combo ● Evolution Icon
Evolution Source ● Face Up ● Forced ● Gacha Figure ● Game
Game Table ● Hyperspatial Cost ● Key Card ● Limited Card ● Mode ● Name Rule
Optional ● Overkill ● Play ● Power Creep ● Quasi-Vanilla ● Real Cost ● Repair
Rock-Paper-Scissors ● Stop ● System Creature ● The Over Eggplant-cross
Touch ● Trivia card ● Twinpactification
Reprint Policies
DASH Golden List ● Duema Golden List
Card Power
Weenie ● Midrange ● Fatty
Lightweight ● Heavyweight