Whenever you cast an instant or sorcery spell, you may have Xenocrata's Fleet become a 4/4 Ship artifact creature with haste until end of turn. Whenever Xenocrata's Fleet deals combat damage to an opponent, create that many 1/1 red Warrior creature tokens.
Whenever you cast a legendary spell, create a 1/1 white Human creature token. {W}{U}{B}{R}{G}: Search your library for a legendary card, reveal it, put it into your hand, then shuffle. The next legendary spell you cast this turn costs {W}{U}{B}{R}{G} less to cast.
Whenever Yri, the Daring Blade and exactly one other creature attack, Yri and that creature can't be blocked by creatures with mana value 3 or less this turn.
{3}, Reveal Zhedina Outskirts from your hand: Put Zhedina Outskirts from your hand onto the battlefield tapped. {T}: Add {C}. {1}, {T}: Add one mana of any color.
Archive 3 (As this enters, shuffle the top three cards of your main library into a new face up library. Sacrifice this after the archived library is empty.) {T}: Add {C}. {1}, {T}: Scry 1.
Choose any number — • Counter target spell unless its controller pays {X}. • Draw X cards, then discard a card. • Create a tapped X/X blue Elemental creature token with flying. Foretell {X}{U}{U}(During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)
Play with the top card of your library revealed. You may cast creature spells from the top of your library. You may pay {W}{U}{B}{R}{G} rather than pay the mana cost for creature spells you cast.
Legendary spells you cast have nonlegendary cascade. (When you cast that spell, exile cards from the top of your library until you exile a nonlegendary nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)
Protection from noncreatures and from creatures with power 3 or less Players dealt damage by Absurdity also get that many poison counters. (A player with ten or more poison counters loses the game.) When Absurdity is put into a graveyard from anywhere, shuffle it into its owner's library.
Transcend (Activate as a sorcery to gain the next type and a +1/+1 counter.) Vigilance, trample {G}{W}: Demon — Abwad Kahroba gains “At the beginning of combat on your turn, you may put a +1/+1 counter on another target creature.” {X}{G}{W}: Elder — Create X 2/1 black Horror creature tokens. You gain X life.
Whenever Abyssal Stalker attacks, defending player discards a card at random. When Abyssal Stalker dies, you may choose a creature. If you do, exile Abyssal Stalker. When the chosen creature leaves the battlefield, return Abyssal Stalker from exile to the battlefield tapped.
Lifelink {2}, Remove two counters from Acrimony: Each opponent loses 2 life and you gain 2 life. At the beginning of your end step, for each permanent, move a counter from that permanent onto Acrimony.
Flying Whenever another creature you control enters, Adavene, Dean of the Arts deals 1 damage to each opponent. Whenever a creature you control deals combat damage to a player, you may exile it, then return it to the battlefield.
Haste Whenever two or more creatures you control deal combat damage to a player, tap those creatures, then gain control of target creature you don't control until end of turn. Untap that creature. It gains haste until end of turn. After this phase, there's an additional combat phase.
As long as it's your turn, Otto is an Otter Soldier creature with indestructible and “This creature's power and toughness are each equal to twice the number of creatures you control.” [+1]: Create a 2/2 green and white Otter Soldier creature token. [–8]: Draw cards equal to the greatest power among creatures you control, then you gain life equal to the greatest toughness among creatures you control.
Look at the top eight cards of your library. Put up to two creature cards with mana value 5 or less from among them onto the battlefield under your control. Put the rest on the bottom of your library in a random order. Menagerie — If there are five or more creature types among creatures you control, if an ability of a permanent you control is triggered this turn, that ability triggers an additional time.
[+1]: Draw two cards. At the beginning of your next end step, discard your hand. [–3]: You get an emblem with “At the beginning of your upkeep, put a loyalty counter on each Aerida planeswalker you control.” [–5]: Take an extra turn after this one.
Flying Your opponents play with their hands revealed. If an opponent would search their library for a card, you may have that player search their hand for that card instead.
If a creature entering the battlefield under your control causes a triggered ability of that creature to trigger, you may exile it. If you do, that ability triggers an additional time.
Aetherite miners use goblins to test for pockets of otherworldly magic, but aether isn't as predictable as flammable air.
Menace, trample, indestructible Whenever Aghavaan Unleashed deals combat damage to a player, that player gets that many poison counters. At the beginning of your end step, sacrifice another creature or transform Aghavaan Unleashed.
[+2]: Create a 1/1 blue Bird creature token with flying. [–2]: Reveal the top card of your library. If it's an enchantment or land card, put it onto the battlefield. Otherwise, put it in your hand. [–7]: Draw seven cards.