Floodtide Serpent

The attack tax here is built to feed an engine, not to punish you. Returning an enchantment to hand every time this Serpent swings sounds like a steep recurring cost until you stack it against the cards designed to want exactly that: Auras with enters-the-battlefield triggers, constellation payoffs that fire each time an enchantment lands, cheap utility enchantments you would happily replay. The body is a clean 4/4, the kind of midrange beater that ends games on its own clock, and the bounce clause turns each attack step into a fresh trigger of whatever enchantment-matters value you have assembled. The friction is real and self-limiting: you can only attack as often as you can afford to recast what you pick up, so the card scales with how much cheap enchantment density your deck can support rather than handing you free reuse. That makes it less a beatdown threat than the attack-step half of an enchantment loop, paying the bounce as a feature on each combat. It belongs to a small school of creatures whose combat restriction is secretly an opt-in trigger generator, where the cost line is doing the work of an activated ability the card never had to print.