Belltoll Dragon

Hexproof on a flying body is the load-bearing decision here, and it changes what the megamorph flip is buying. Most morph creatures use the face-up cost as a combat trick or a tempo swing; this one converts a flat 2/2 into an evasive threat that targeted removal cannot touch, and the timing of the flip is what makes it a tribal lever rather than a body. Coming down face down hides the Dragon and threatens a future swing, but the real payoff is the turn-up trigger: flip it, and your whole Dragon board gains a counter at once, all at instant speed. That anchors the card to a board state rather than a standalone clock. Alone it is an expensive evasive flyer; in a sky already stocked with Dragons it is the card that turns a stalled aerial assault into a lethal one in a single response window. The flip cost is steep enough that it cannot double as a cheap surprise, which is the point: it wants to land face down early and resolve its trigger late, once you have the bodies to make the counter spread matter and the mana to flip without tapping out into open trouble. Hexproof is what lets you commit to that slow plan, since the flipped creature shrugs off the spot removal that normally punishes a telegraphed morph the moment it reveals itself.