Andúril, Flame of the West

A creature-heavy shell may test it as a token snowballer, but five total mana and a combat requirement are far slower than Modern's usual equipment rate.

Could be wrong if A dense legendary-attacker equipment shell could make the immediate attacking Spirits more reliable than expected.

Equipment tutoring can make a one-of plausible, but a 3-mana artifact needing another 2 mana and combat is vulnerable and inefficient in Legacy.

Could be wrong if Existing equipment shells may value a tutorable one-card army more than its setup cost suggests.

On a legendary commander, each attack adds two attacking fliers while boosting the commander; that is a strong repeatable payoff for combat-focused builds.

Could be wrong if Five mana across casting and equipping may be too slow for optimized lists without resilient combat commanders.

The +3/+1 bonus makes attacks threatening, and repeated two-Spirit triggers rapidly overwhelm boards, though the five-mana setup invites removal.

Could be wrong if Unknown speed, removal density, and legendary-creature availability could make the setup too vulnerable or the attacking-token clause less relevant.