You may discard a Plains card rather than pay this spell's mana cost.

Destroy target artifact or enchantment.

Suspend 4--{U} (Rather than cast this card from your hand, pay {U} and exile it with four time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)

Target player draws three cards.

If an opponent searched their library this turn, you may pay {0} rather than pay this spell's mana cost.

Target opponent mills thirteen cards.

Artifact and enchantment spells your opponents cast cost {2} more to cast.

Sacrifice Aura of Silence: Destroy target artifact or enchantment.

Creatures your opponents control enter the battlefield tapped.

Whenever a creature enters the battlefield under an opponent's control, you gain 1 life.

As Black Vise enters the battlefield, choose an opponent.

At the beginning of the chosen player's upkeep, Black Vise deals X damage to that player, where X is the number of cards in their hand minus 4.

As an additional cost to cast this spell, sacrifice a land.

Search your library for a land card, put that card onto the battlefield, then shuffle.

For each tapped nonland permanent target opponent controls, search that player's library for a card with the same name as that permanent. Put those cards onto the battlefield under your control, then that player shuffles.

Suspend 3--{1}{U}{U} (Rather than cast this card from your hand, you may pay {1}{U}{U} and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)

You may return two Islands you control to their owner's hand rather than pay this spell's mana cost.

Tap all creatures.

Vigilance

{T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

Suspend 4--{W}{U}

+2: Each player draws a card.

-1: Target player draws a card.

-10: Target player mills twenty cards.

+2: Look at the top card of target player's library. You may put that card on the bottom of that player's library.

0: Draw three cards, then put two cards from your hand on top of your library in any order.

-1: Return target creature to its owner's hand.

-12: Exile all cards from target player's library, then that player shuffles their hand into their library.

+2: Scry 2.

0: Look at the top card of your library. If it's a land card or a creature card with mana value less than or equal to the number of loyalty counters on Nissa, Steward of Elements, you may put that card onto the battlefield.

-6: Untap up to two target lands you control. They become 5/5 Elemental creatures with flying and haste until end of turn. They're still lands.

({G/P} can be paid with either {G} or 2 life.)

Put target card from a graveyard on top of its owner's library.

If an opponent had a green creature enter the battlefield under their control this turn, you may pay {U} rather than pay this spell's mana cost.

Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

If an opponent had three or more cards put into their graveyard from anywhere this turn, you may pay {0} rather than pay this spell's mana cost.

Exile target player's graveyard.

Cast this spell only during an opponent's turn after their upkeep step.

Untap all lands you control.

If an opponent drew three or more cards this turn, you may pay {R} rather than pay this spell's mana cost.

Runeflare Trap deals damage to target player equal to the number of cards in that player's hand.

Sage of Ancient Lore's power and toughness are each equal to the number of cards in your hand.

When Sage of Ancient Lore enters the battlefield, draw a card.

At the beginning of each upkeep, if no spells were cast last turn, transform Sage of Ancient Lore.

Vigilance, trample

Werewolf of Ancient Hunger's power and toughness are each equal to the total number of cards in all players' hands.

At the beginning of each upkeep, if a player cast two or more spells last turn, transform Werewolf of Ancient Hunger.

Exile Simian Spirit Guide from your hand: Add {R}.

You may exile a blue card from your hand rather than pay this spell's mana cost.

Return target creature to its owner's hand.

If a creature spell you cast this turn was countered by a spell or ability an opponent controlled, you may pay {0} rather than pay this spell's mana cost.

Look at the top seven cards of your library. You may put a creature card from among them onto the battlefield. Put the rest on the bottom of your library in any order.

You may exile two white cards from your hand rather than pay this spell's mana cost.

Destroy all creatures.

Activated abilities cost {2} more to activate unless they're mana abilities.

First strike

Creatures and nonbasic lands your opponents control enter the battlefield tapped.

Defender

Put a -0/-1 counter on Wall of Roots: Add {G}. Activate only once each turn.

If an opponent had two or more creatures enter the battlefield under their control this turn, you may pay {U} rather than pay this spell's mana cost.

Return two target creatures to their owners' hands.

Search your library for a creature card, reveal it, then shuffle and put the card on top.