FlyingTetravus enters with three +1/+1 counters on it.At the beginning of your upkeep, you may remove any number of +1/+1 counters from Tetravus. If you do, create that many 1/1 colorless Tetravite artifact creature tokens. They each have flying and "This creature can't be enchanted."At the beginning of your upkeep, you may exile any number of tokens...
Flying (This creature can't be blocked except by creatures with flying or reach.): Regenerate Will-o'-the-Wisp. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)
Enchant creatureEnchanted creature can attack as though it had haste.: Untap enchanted creature. Activate only during your turn and only once each turn.
HasteAt the beginning of your upkeep, if Nether Shadow is in your graveyard with three or more creature cards above it, you may put Nether Shadow onto the battlefield.
Flying (This creature can't be blocked except by creatures with flying or reach.)Nightmare's power and toughness are each equal to the number of Swamps you control.
At the beginning of each player's upkeep, Power Surge deals X damage to that player, where X is the number of untapped lands they controlled at the beginning of this turn.
, : The next time you would draw a card this turn, instead look at the top X cards of your library, put all but one of them on the bottom of your library in a random order, then draw a card. X can't be 0.
You and target opponent each flip a coin. Mana Clash deals 1 damage to each player whose coin comes up tails. Repeat this process until both players' coins come up heads on the same flip.
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)At the beginning of your upkeep, Force of Nature deals 8 damage to you unless you pay .
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)Colossus of Sardia doesn't untap during your untap step.: Untap Colossus of Sardia. Activate only during your upkeep.
: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)