Dreadlight Monstrosity
A six-mana 5/5 with Ward would ordinarily be a slow, well-protected wall and nothing more; what changes its function is a gate most decks never think to trip. The unblockable activation only turns on if you own a card in exile, welding the finisher to a specific board state rather than to raw mana. Feed the exile zone (foretell shells and any effect that parks one of your own cards there rather than in the graveyard) and the body converts from blocker to inevitable clock, pushing five through a stalled ground every turn you can pay the activation. Leave the condition unmet and you have paid six for a defensive creature with a dormant switch, though never a dead one: the Ward tax is live from the moment it lands, forcing an extra two mana onto every targeted removal spell an opponent points at it. That protection has a known seam. Ward answers only what targets; an edict or a sacrifice trigger still uses the stack, but it makes the controller choose a creature rather than naming this one, so the tax never comes due and a top-end this expensive falls all the same. The two readings sit side by side depending entirely on whether the deck around it does the work: a slow blocker with a tax attached, or the closer a grindy blue plan cashes its early trades into. Which card you drew is settled by the exile zone, not the battlefield.

