In Oketra's Name

A two-mana team pump that taxes non-membership: every Zombie gets the bigger boost, everyone else gets a strictly smaller one. Instant-speed team buffs are an old white staple, and most of them lift the board uniformly; this one is built to reward you for committing to a single creature type rather than just flooding the board. The split is deliberately narrow (+2/+1 versus +1/+1, a single point of power and nothing else) so the effect stays a fair combat trick in a deck that fields no undead while turning into a real finisher in one that is wall-to-wall Zombies. The instant timing is doing the heavy lifting: it works as both an alpha-strike enabler on your own turn and a blowout in the blocking step, since the toughness bump arrives after your opponent has already committed to combat math that no longer holds. As a pump effect it lives or dies by board width, so its ceiling scales with how token-heavy and how Zombie-dense the deck around it gets. Outside a tribe that cares, it is a plain anthem for a turn; inside one, the gap between the two clauses is exactly the incentive to keep your creature types honest.