Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

: Soldevi Simulacrum gets +1/+0 until end of turn.

As an additional cost to cast this spell, exile a creature you control.

Return target creature card from your graveyard to the battlefield. Put a +2/+2 counter on that creature if the exiled creature was a Thrull.

Tap all blocking creatures. Prevent all combat damage that would be dealt this turn. Each attacking creature and each blocking creature doesn't untap during its controller's next untap step.

Attacking creatures get +1/+0 and gain trample until end of turn.

Enchant creature

Enchanted creature gets +0/+2.

: Enchanted creature gets +1/+0 until end of turn.

Flying

: Storm Spirit deals 2 damage to target creature.

Target player chooses three cards from their hand and puts them on top of their library in any order.

Svyelunite Temple enters the battlefield tapped.

: Add .

, Sacrifice Svyelunite Temple: Add .

(: Add or .)

At the beginning of your upkeep, put a spore counter on Thallid.

Remove three spore counters from Thallid: Create a 1/1 green Saproling creature token.

, , Sacrifice a creature: Forests you control become 2/3 creatures until end of turn. They're still lands.

Cumulative upkeep—Exile the top card of your library. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

When a player doesn't pay Thought Lash's cumulative upkeep, that player exiles all cards from their library.

Exile the top card of your library: Prevent the next 1 damage that would be dealt to you this turn.

At the beginning of your upkeep, put a time counter on Time Bomb.

, , Sacrifice Time Bomb: Time Bomb deals damage equal to the number of time counters on it to each creature and each player.

(: Add or .)

: Varchild's Crusader can't be blocked this turn except by Walls. Sacrifice Varchild's Crusader at the beginning of the next end step.

, Sacrifice a creature and a Swamp: Destroy target nonartifact creature. It can't be regenerated.

, Sacrifice a creature and a snow Swamp: Destroy target creature. It can't be regenerated.

Prevent all combat damage that would be dealt by target attacking creature this turn.

All creatures lose flying until end of turn.

Sacrifice a snow land: Return Whiteout from your graveyard to your hand.

Flying

Menace (This creature can't be blocked except by two or more creatures.)

Whenever a player taps a snow land for mana, that player adds one mana of any type that land produced. That land doesn't untap during its controller's next untap step.

You may have Wolf Pack assign its combat damage as though it weren't blocked.

Reach (This creature can block creatures with flying.)

Whenever Woolly Spider blocks a creature with flying, Woolly Spider gets +0/+2 until end of turn.

: Zuran Spellcaster deals 1 damage to any target.