At the beginning of your upkeep, choose target opponent. Until end of turn, that player can't cast spells, you may look at the top card of their library any time, you may play the top card of their library, and you may spend mana as though it were mana of any color to cast spells this way.

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

, : Put a petrification counter on target creature. It gains defender and becomes a colorless artifact in addition to its other types. Its activated abilities can't be activated. (A creature with defender can't attack.)

Whenever Xolatoyac, the Smiling Flood enters the battlefield or attacks, put a flood counter on target land. That land is an Island in addition to its other types for as long as it has a flood counter on it.

At the beginning of your end step, untap each permanent you control with a counter on it.

Flying

When Yanling's Harbinger enters the battlefield, you may search your library and/or graveyard for a card named Mu Yanling, Celestial Wind, reveal it, and put it into your hand. If you search your library this way, shuffle.

: Yavimaya Ancients gets +1/-2 until end of turn.

Domain — This spell costs less to cast for each basic land type among lands you control.

Flying (This creature can't be blocked except by creatures with flying or reach.)

First strike (This creature deals combat damage before creatures without first strike.)

At the beginning of your upkeep, you may sacrifice an artifact. If you don't, tap Yawgmoth Demon and it deals 2 damage to you.

Flying, vigilance, menace

Whenever Yennett, Cryptic Sovereign attacks, reveal the top card of your library. You may cast it without paying its mana cost if its mana value is odd. If you don't cast it, draw a card.

Trample, haste

Cycling

When you cycle Yidaro, Wandering Monster, shuffle it into your library from your graveyard. If you've cycled a card named Yidaro, Wandering Monster four or more times this game, put it onto the battlefield from your graveyard instead. (Do this before you draw.)

Whenever a legendary permanent other than Yomiji, Who Bars the Way is put into a graveyard from the battlefield, return that card to its owner's hand.

Flying

When Yosei, the Morning Star dies, target player skips their next untap step. Tap up to five target permanents that player controls.

When Young Necromancer enters the battlefield, you may exile two cards from your graveyard. When you do, return target creature card from your graveyard to the battlefield.

This spell costs less to cast for each land card in your graveyard.

Whenever Yuma, Proud Protector enters the battlefield or attacks, you may sacrifice a land. If you do, draw a card.

Whenever a Desert card is put into your graveyard from anywhere, create a 4/2 green Plant Warrior creature token with reach.

This spell costs less to cast for each creature in your party.

Flying, deathtouch, haste

Other creatures you control have deathtouch.

Whenever a creature you control deals combat damage to a planeswalker, destroy that planeswalker.

Trample

Whenever Zalto, Fire Giant Duke is dealt damage, venture into the dungeon. (Enter the first room or advance to the next room.)

Flying

Scavenge (, Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.)

Flying

Whenever Zara, Renegade Recruiter attacks, look at defending player's hand. You may put a creature card from it onto the battlefield under your control tapped and attacking that player or a planeswalker they control. Return that creature to its owner's hand at the beginning of the next end step.

You may play lands and cast Insect spells from your graveyard.

Whenever another Insect you control dies, put it on the bottom of its owner's library, then mill two cards. (Put the top two cards of your library into your graveyard.)

: Target Insect gets +1/+0 and gains deathtouch until end of turn. ( can be paid with either or .)

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

When Zephyr Spirit blocks, return it to its owner's hand.

Vigilance; horsemanship (This creature can't be blocked except by creatures with horsemanship.)

Whenever Zhang Liao, Hero of Hefei deals damage to an opponent, that opponent discards a card.

Zhou Yu, Chief Commander can't attack unless defending player controls an Island.

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Flying

At the beginning of your end step, you may sacrifice another creature. When you do, Ziatora, the Incinerator deals damage equal to that creature's power to any target and you create three Treasure tokens.

, : Search your library for a Dragon permanent card, put that card onto the battlefield, then shuffle. That Dragon gains haste until end of turn. Exile it at the beginning of the next end step.

When Zodiac Dragon is put into your graveyard from the battlefield, you may return it to your hand.

: Choose a color. Whenever Zombie Boa becomes blocked by a creature of that color this turn, destroy that creature. Activate only as a sorcery.

Morph—Pay 5 life. (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

At the beginning of your end step, if a creature died this turn, venture into the dungeon. (Enter the first room or advance to the next room.)

Flying

Other Griffin creatures get +1/+1.

Haste

Zurgo Helmsmasher attacks each combat if able.

Zurgo Helmsmasher has indestructible as long as it's your turn.

Whenever a creature dealt damage by Zurgo Helmsmasher this turn dies, put a +1/+1 counter on Zurgo Helmsmasher.