Still Life

The trick this enchantment is built around is that it sits on the battlefield as something removal does not want to spend a card on: an enchantment that, most of the time, simply is not a creature. Pay the activation and it puts on a 4/3 body until end of turn, attacks or blocks, then folds back into pure enchantment-hood before sorcery-speed creature removal gets another turn to find it. That on-demand transformation is the whole appeal: between activations the permanent gives a Wrath effect nothing to hit, so the board you commit is one a sweeper cannot punish. The lineage runs straight through Mishra's Factory, which does the same dance with a tighter cost and no separate card slot devoted to it, which is why the structural idea ultimately migrated onto lands rather than enchantments. Paying full mana for a do-nothing permanent and then paying again every turn to make it relevant is a steep tax, and lands that animate themselves pay it for free. But the concept is here in clean form: a creature you can hide between combat steps, immune to the answers that punish leaving bodies on the table, available again the moment you untap.