Unhinged, upkeep (12)
At the beginning of your upkeep, you may say "Ach Hans, run It's the . . ." and the name of a creature card. If you do, search your library for a card with that name, put it onto the battlefield, then shuffle. That creature gains haste. Exile it at the beginning of the next end step.
Flying
At the beginning of your upkeep, sacrifice Carnivorous Death-Parrot unless you say its flavor text.
At the beginning of your upkeep, flip a coin. If you lose the flip, target opponent chooses whether Dumb Ass attacks this turn.
At the beginning of your upkeep, you may ask target player a yes-or-no question. If you do, that player answers the question truthfully and abides by that answer if able until end of turn.
First strike
At the beginning of your upkeep, reveal a card from your hand at random.
Skip your untap step.
At the beginning of your upkeep, you may pay X life. If you do, untap X permanents.
Pay ½ life: Exile the top card of your library face down. Put that card into your hand at the beginning of the next end step.
At the beginning of your upkeep, if you control permanents with names that include all twenty-six letters of the English alphabet, you win the game.
Phasing, cumulative upkeep , echo , fading 3, bands with other Dinosaurs, protection from Homarids, snow-covered plainswalk, flanking, rampage 2
Flying, trample
At the beginning of your upkeep, exile the top card of your library and balance it on your body.
When a balanced card falls or touches another balanced card, sacrifice Phyrexian Librarian.
: Exile Time Machine and target nontoken creature you own. Return them to the battlefield at the beginning of your upkeep on your turn X in the next game you play with one of your opponents in this game, where X is the mana value of the exiled creature.
Cumulative upkeep—Say "Toy Boat" quickly. (At the beginning of your upkeep, put an age counter on Toy Boat, then sacrifice it unless you say "Toy Boat" once for each age counter on it—without pausing between or fumbling it.)
At the beginning of your upkeep, destroy all nonland permanents with the first name alphabetically among nonland permanents.
Gatherer works better in the Companion app!