Glimmer Seeker

The trigger checks your second main phase, and it only rewards you if the body is still tapped: the payoff is conditioned on the creature being tapped rather than crashing in to trade. A 3/3 for is exactly the size that invites profitable blocks, so the deck pays for the engine with its willingness to send the creature into combat and get it back tapped on the far side. The condition beneath that is the more interesting split. With a Glimmer creature already in play, the tap resolves into a card; without one, it spins up a 1/1 white Glimmer enchantment creature token, which then satisfies the requirement on the following turn. So the first tap seeds the board and every one after it draws: a self-priming loop that starts slow and compounds, since the token it makes becomes the qualifier that flips the next trigger from bodies to cards. That escalating reward, gated behind committing to combat and surviving it, is the design tension at the center of Survival: the card wants to be aggressive to trigger, but aggression is precisely what threatens the body doing the triggering. It is a mono-white engine piece built for a Glimmer-typed shell rather than a standalone threat, and its value depends on reliably keeping a Glimmer creature in play.