Gotcha
Gotcha is an ability word which has only been seen in Unhinged. It groups together abilities on cards which allow recursion from the graveyard when its owner says "Gotcha!" in response to a specific event, normally something an opponent is doing. Unlike other ability words, Gotcha! isn't italicized.
Example
Instant
Target player discards a card.
Gotcha — Whenever an opponent audibly flicks the cards in his or her hand, you may say "Gotcha!" If you do, return Stop That from your graveyard to your hand.