Might of the Ancestors

A recurring anthem attached to a single body every combat, and the trigger's placement is the whole reason it plays differently from the auras it resembles. Firing at the beginning of combat, before attackers are declared, means the +2/+0 and vigilance land while you still control which creature carries them, so the pump follows your best threat rather than being locked to one target the moment an aura resolves. That timing is also why the vigilance matters: the buffed creature can swing without giving up its blocking assignment, turning a single attacker into an offense-and-defense package for the turn with no further investment. The cost of that recurrence is a different fragility than aura decks usually accept: nothing is stapled to a creature, so a removal spell aimed at your chosen target costs you a turn of pressure but never a card, and the enchantment simply retargets next combat. It is the aura's payoff without the aura's two-for-one downside, paid for by trading the burst of an all-at-once buff for an increment that resets to nothing each end step. That is the honest limit: the +2/+0 and vigilance expire every turn, so the enchantment is a faucet rather than a stack, delivering the same bump again and again without ever leaving a mark on the board. White has always liked "grow your attacker each turn" effects that reward committing bodies over cards; this does that work from a permanent that can never be blown out the way an attached aura can.