Alex Wilder, Runaway

The reward keys off the word cast, and reading past it is the whole trap. This does not fire when a creature is simply put onto the battlefield: blink, reanimation, and cheat-into-play effects all skip the casting step, so none of them light up the +2/+0 and haste. What triggers it is casting a creature from anywhere other than your hand, which is a narrower and stranger set of lines than it first sounds. Casting a creature from your graveyard via escape counts. Casting one from exile off cascade or an impulse-draw counts. Casting a creature stashed above your first draw counts too. The design is a payoff pointed squarely at the alternative-cast-zone engine, the deck that treats its graveyard and exile as launch pads for spells rather than a flicker-reanimator pile that never casts anything. Alex feeds his own trigger through escape: recast him from the graveyard and he arrives pumped and hasty like everything else you cast from beyond your hand, then repeats the loop each time he dies, provided you keep three cards banked to exile. Most graveyard-value commanders build a recursion loop and stop at card advantage; this one converts that recursion into an attack step, turning every non-hand creature cast into immediate board pressure. The 1/3 body is a deliberately quiet frame, unthreatening until the cast-from-elsewhere triggers start stacking haste onto a widening board and the value pile suddenly becomes a clock.