Draining Regeneration

Return target creature card from your graveyard to the battlefield under your control. It gains “When this creature enters, you may pay {1}{B}. If you don’t sacrifice this creature.”{flavor}King Ghidorah possesses an exceptional healing factor. After having his left head severed by Godzilla, he was able to completely regenerate it in a matter of moments. However, he must absorb a lot of energy to do this.