Lifecreed Duo

The lifegain here is not the reward: it is the meter. A trigger that fires on every other creature you control entering turns the card into a counter for how wide and how fast your board is developing, converting the pace of a go-wide deck into life totals without asking you to change a single line of play. That framing prices the effect fairly: one life per creature is trivial in a vacuum and meaningful only once the deck is already flooding the board, which is exactly the deck that wants a cheap flyer as a curve-filler anyway. The Bat Bird typing and the small evasive body are the tell that this was built for a token-and-swarm shell rather than a controlling one; it wants disposable bodies, not expensive threats, and the more of them the better. The design lineage is the incidental-lifegain engine, the same structural job Soul Warden and Essence Warden have done for years, refit for a token strategy that cares less about outlasting aggression and more about buffering the life loss that go-wide plans accrue. What separates it from those older, grounded engines is the flying: it contributes to the same clock it is measuring, so the body that keeps you alive in a mirror race is also nudging that race along in the air, one point at a time, in the exact matchups where a single point of reach decides who gets there first.