msem-instigator

Trample, haste
All creatures able to block Crashing Mammoth do so.

This spell costs {1} less to cast for each Desert you control.
When Crested Crustacean enters, return target permanent to its owner's hand.

Pressure {3}{U}{B} (You may cast this spell for its pressure cost if there are seven or more cards in your graveyard.)
Slipstream (This creature can't be blocked as long as only creatures with slipstream are attacking.)
{U}{B}, Reveal Cuxuri Beckoner from your hand: Target player mills two cards.

Flying, haste
Whenever Cyrukan's Elite attacks, create
a 4/4 white Angel Soldier creature token with flying. If it's the first time Cyrukan's Elite has attacked this turn, untap all creatures you control. After this phase, there is an additional combat phase.

Menace
When Darna's Atrocity enters, you may pay 2 life. If you do, you draw two cards and mill two cards.
{B}, Exile a card from your graveyard: Darna's Atrocity gets +1/+1 until end of turn.

When Destiny Beyond Measure enters, tap each creature you control.
Creatures you control get +8/+8 and have “This creature enters tapped.”

This spell costs {1} less to cast for each card put into your graveyard from anywhere this turn.
At the beginning of each player's upkeep, that player loses 1 life, discards a card, and sacrifices a creature.

Trample
When Dreaded of Sahra enters, creatures you control become 8/8 Demons in addition to their other types until end of turn.

Take an extra turn after this one.
Compose (Then if you cast this from your hand, exile it and create a Saga token with “r3—You may cast a copy of this card from exile without paying its mana cost.”)

Double strike, trample, indestructible, haste
When Dredgeline Colossus enters, salvage up to eight noncreature, nonland cards. (You may exile them from your graveyard until this creature leaves the battlefield. Whenever this creature deals combat damage to a player, put a card it salvaged into your hand.)

Exile up to three instant or sorcery cards from your graveyard. You may cast a copy of each card exiled this way without paying its mana cost.

When Embodiment of Abundance enters, choose one —
• Search your library for up to X basic land cards, where X is the number of lands you control, and put them onto the battlefield tapped. Then shuffle.
• Create a 1/1 green Elf Druid creature token for each creature you control.

Each player discards their hand and sacrifices all permanents they control, draws seven cards, then abounds seven times. (To abound, you may cast a spell that costs less than this from your hand without paying its mana cost.)

Destroy all nonenchantment permanents. If thirty or more lands were destroyed this way, you win the game.

This spell costs {1} less to cast for each other card in your hand.
If you have fewer than seven cards in hand, draw cards equal to the difference.

Flying, vigilance
At the beginning of your end step, return up to one target creature card from your graveyard to the battlefield. If a creature isn't returned this way, create a 4/4 Elemental creature token that's all colors.

Search target opponent's library for a nonland card. You may cast that card without paying its mana cost. Then that player shuffles.
Acquiesce (If you cast this spell from your hand, exile it as it resolves. When one or more creatures you control deal combat damage to an opponent, you may cast this card from exile without paying its mana cost.)

When Final Form enters, your life total becomes 20.
At the beginning of your upkeep, destroy up to one target creature. You draw X cards and you lose X life, where X is its power.

This spell costs {1} less to cast for each storied permanent you control. (Enchantments and legendary permanents are storied.)
Destroy all nonland, nonstoried permanents.

Exile target creature, then exile target creature card from a graveyard. An opponent chooses one of them. Put the chosen card onto the battlefield under your control.

Flying
Whenever Giradrus enters or attacks, look at the top eight cards of your library. You may put a Dragon card from among them onto the battlefield. If Giradrus is attacking, that Dragon enters tapped and attacking. Put the rest on the bottom of your library in any order.

This spell costs {X} less to cast, where X is the number of Dwarves and Elves you control.
Trample, haste
Whenever Harl and Finn attacks, other creatures you control get +1/+1 and gain trample until end of turn.

At the beginning of your end step, exile target permanent.
When Head of Ulko leaves the battlefield, return each other card exiled with it to the battlefield under your control.

This spell costs {X} less to cast, where X is your devotion to green. (Each {G} in the mana costs of permanents you control counts toward your devotion to green.)
Trample

Prevent all damage that would be dealt to you and permanents you control.