Eon Frolicker

Giving an opponent an extra turn is a Faustian bargain that Magic's design language usually reserves for symmetrical group-hug politics, and the trick here is neutralizing exactly the half of that bargain that would kill you. Handing someone a bonus turn ordinarily means eating a full attack step aimed at your face, a second wave of burn at your walkers, a chance to point targeted disruption your way; this buys that specific window off with a wall of protection from that one player, covering you and your planeswalkers until your next turn. The extra turn still resolves, so the target still draws, untaps, and develops their board, and note what the protection does not cover: your creatures. They can still be blocked, and they can still be targeted by that opponent's removal on the bonus turn. What the shield protects is your life total and your walkers, which reframes a self-inflicted wound into a way to buy a beat and defuse a player's threat clock without becoming the target of the turn you just handed them. The bonus turn also works as a political lever, accelerating an ally or forcing a rival into an awkward tempo spot they did not ask for. The cast-only conditional (it must be cast, not cheated or blinked into play) keeps the package from being farmed for repeated free turns, tying drawback and payout to the one moment you pay for it. The 5/5 flier is almost incidental, a reasonable clock bolted to a genuinely strange political engine.