Suicide

Suicide is a slang term given to abilities of your own cards that can be self-detrimental.

Details
It is most often used for cards that remove your own shields or creatures, in exchange for a cheaper than usual costing card.

For example, a card such as Volcanic Arrows or Bubble Trap can be used to remove your opponents creatures from the battle zone, but at the loss of putting one of your shields into your graveyard or hand respectively.

Excessive Card Draw or Mana Acceleration can also be seen as a risky tactic as the possibility of deck out increases.

Many of the Angel Commands in the Episode 2 block of sets that were corrupted and in the Darkness Civilization had "suicide" type-effects. This includes cards such as Codenight Black of Lionel, Codenight Congratulation, Codenight Last Propose and Codenight June Bride.

It is a slang term taken from "Magic the Gathering" as meaning for self-destructive cards, and is usually seen as a tactic for advanced users due to the combos involved.

Main Suicide cards

 * Ghastly Drain
 * Aurora of Reversal
 * School Man
 * Drill Squall
 * Kodamanma, All-Devouring Puppet
 * Kodamanma, Gil Gil Puppet
 * Necrodragon End of the World
 * Darkness Civilization Angel Commands in Episode 2

Compatible Cards

 * Miraculous Meltdown
 * Gabriella, Holy Princess
 * Perfect Madonna, Light Weapon
 * Fernando the 7th, Emperor of Mystic Light

Main Deck Types

 * Mad Romanoff One-Shot
 * Wedding Gate
 * Aurora Marriage