Verdant Rebirth

The combat trick that doesn't trick combat. Most green instants in this slot buy you a fight or a pump; this one grants a one-turn safety net and replaces itself in the same breath. The granted ability is a death-return, which means the protection only triggers if your creature actually dies, so the card sits in a peculiar window: it does nothing to win a combat, but it guarantees you keep the body and the resource even when you lose one. Point it at a creature your opponent is about to remove and the spot removal becomes a one-for-one trade where you keep your threat (now in hand, ready to recast); aim it at a blocker about to die in combat and the chump-block costs you nothing. The cantrip is the release valve on all of this: at worst you've drawn a card, so it is never a dead spell when nothing is dying. That floor is the design's real point. Death-protection effects usually flirt with card disadvantage, since you're spending a card to maybe save a card; the draw quietly resolves that anxiety. It rewards creatures whose enter-the-battlefield work outweighs the tempo of recasting them, turning a removal-bait body into a renewable resource rather than a target you have to defend.