Chaos Lord
A 7/7 first striker for that you do not reliably get to keep: the upkeep clause hands the creature to an opponent whenever the total number of permanents on the battlefield is even, which turns the board state into a coin you are forced to flip every turn. The design idea is parity as a leash. Every land, every token, every creature on either side shifts the count, so whoever controls Chaos Lord has to track and manipulate something most board states ignore entirely. Play a permanent, pass it back; sacrifice a permanent, take it back. The card converts the act of counting your own board into the price of fielding a genuinely large beater. The haste-unless-it-entered-this-turn line is the small mercy that makes it functional: once it survives a turn, it swings immediately on whatever turn it lands in, so even a single attack under your control is meant to count. This is high-variance red design at its most literal, a set of rules text that builds chaos directly into the win condition: a 7/7 that asks you to engineer an odd permanent count on your upkeep and accept that the math will not always cooperate. The body is real; the leash is the point, and everything hinges on whether you can rig the parity in your favor before the upkeep trigger resolves.
