Chittering Host

The payoff side of a meld, and the only half of that two-card trick that does its work the instant it lands. There is no casting it: the empty cost on the back face means this 5/6 only arrives through the meld condition, fully assembled, with the entry trigger already spent on the rest of your board. That trigger is the whole point. Handing every other creature +1/+0 and menace through end of turn turns a stalled ground into an alpha strike the same turn the Eldrazi shows up, because two-blocker math collapses fast when every attacker demands a pair to stop it. Haste on the body means the swing happens now, not next turn, and menace on the 5/6 itself makes it as hard to wall as the team it just buffed. The design wager is that the reward is one-shot and gated behind the assembly: you do not get a recurring value engine, you get a single combat-step detonation that justifies the cost of melding two permanents by ending the game it enters rather than grinding toward one. It reads less like a control finisher waiting out the board and more like a deliberate burst built for one attack step, the kind of payoff that asks you to have already set up a wide board before the trigger ever fires.