Attack if Able

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Details
If it is possible to attack (even if it is obvious that suicide bombing is evident) the demerit ability must be attacked without fail. Sometimes we call a creature with this ability "a mandatory attacker." You can not start the ability to activate (instead of attacking) ( tap ability, dynamo etc). ( Dynamo is applicable when "Battle starts") Before the fighting spell, it was notation that "you must attack every turn". Also, there is a slight expression of "if possible".

There are many demerits in creatures of the fire civilization, those that let you give the opponent to force the attacks are dark , and those that limit the attack target described later are naturally many. The main variations are described below.

This creature attacks each turn if able
Creatures with this ability must attack each turn unless they can not attack by summon sickness etc.

This creature attacks twice each turn if able
Basically the same as above. It is arbitrary when attack for the third time or later can be done during turn for some reason.

??? if able
Creatures with this ability let other creatures participate in attacks the turn.

Exclude creatures that you can not attack originally, such as " can not attack " creatures or summon sickness. Creatures that "can not attack opponent" (only creatures can attack) creatures only if there is a right (tapped) opponent creature as an attack target. Even if a creature with this ability ceases to exist from the battle zone, its effect remains. (See continuing effects )

All your opponents creatures attack if able
Give opposing creatures the ability to "attack if possible" disadvantage and invite self-destruction.

"Phantom · Veil", "Forced Charge" , "Soul Binding" etc. are spells that give disadvantages to opponent creatures "to attack if possible" ability. In the phoenix bird edition, this ability which is the characteristic of dark civilization is acquired partly by fire humanoid and Tyranno Drake which is a hybrid tribe.

In the case of a permanent ability, if a creature with that ability ceases to exist from the battle zone , or untaped and the condition is not satisfied, the effect ends. However, in the case of a triggering ability like "S class immortality dead guerrilla" it will continue.

Rules
"Can Attack" and "Can't Attack"

"Can't Attack" and "Attack if Able"

"Attack Target"