Tatsunari, Toad Rider

The type line promises a Ninja and delivers an enchantress, and the wrinkle is that both halves are true at once. The engine is a two-body affair by design: this legend generates and evades, while Keimi (a separate legendary token) carries the drain that punishes every aura, saga, and enchantment creature you resolve after it lands. Splitting the payoff off the commander onto its own body is the load-bearing choice. The drain survives spot removal aimed at the generator, since Keimi keeps ticking even if the Ninja gets picked off, though a board wipe takes both. The "if you don't control a creature named Keimi" clause is the throttle: one Frog at a time, no runaway token count, just a steady tax on the table that resets only after the token dies. The evasion ability is what makes the Ninja flavor pay off rather than sit as a naming joke. It turns Keimi (or any Frog you assemble) into a repeatable attacker that only flyers and reach can wall off, for a hybrid cost that stays castable in a base-black shell. Far from a creature that never wants to attack, the whole loop asks it to swing: cast enchantment, drain, connect through everything on the ground, repeat. Enchantress payoff fused with aristocrat-style drain, both keyed off the one action an enchantment deck was always going to take.