Ruric Thar, Biomagus

A 4/6 flier can close games quickly after spells, and targeted removal replaces itself, but six mana and no immediate impact limit it to a possible top-end test.

Could be wrong if The revealed spells shell may prove able to support a six-mana payoff better than current curve pressure suggests.

Pioneer Izzet aggressive decks need cheaper threats; a six-mana creature without haste or an enters-the-battlefield effect is unlikely to earn a slot.

Could be wrong if A slower blue midrange or spell-heavy ramp shell could emerge and want a resilient aerial finisher.

Modern Izzet Prowess is built around low-cost pressure and immediate tempo. This is far too expensive and vulnerable before it can exploit double prowess.

Could be wrong if An undisclosed efficient way to deploy it early or give it haste would materially change the evaluation.

Six mana is prohibitive for a threat with no immediate value in Legacy, while its legendary status adds exposure to Karakas despite the card-draw trigger.

Could be wrong if A new mana-cheating shell could make its large flying body and spell scaling more relevant than expected.

A durable flying spellslinger payoff that discourages targeted interaction, but six mana and lack of immediate cards or board impact keep it a niche inclusion.

Could be wrong if Its double-prowess trigger may prove a stronger one-turn kill tool in optimized spell-dense Commander decks.

A 4/6 flier dominates combat and double prowess makes even small spells lethal; drawing a card when targeted makes removal less efficient.

Could be wrong if Unknown format speed, fixing, and removal density could make six mana substantially less reliable than its body suggests.