Creatures you control get +X/+X and gain vigilance and trample until end of turn, where X is the number of Forests you control plus the number of cards with a cycling ability in your graveyard.
Forestcycling {2}

This spell costs {1} less to cast for each creature and/or enchantment card in your graveyard.
Ward—Discard a card.

Choose a color. Exile all permanents of the chosen color. Until the end of your next turn, if you would add {C}, instead add {C} and one mana of the chosen color.

Lands you control lose all mana abilities and have “{T}: This land deals 1 damage to any target.”
If a nonland source you control would deal damage, prevent that damage and create that many Treasure tokens.

This spell costs {X} less to cast, where X is your greatest devotion to a single color.
Menace

Flash
When Conduit of Change enters, if you cast it, return all other nonland permanents to their owner's hands.
Spellcharge 7

Flash
Approval — When Congressional Kraken enters, return each nonland permanent with mana value less than or equal to the number of colors among permanents you control to their owners' hands.

Ward {3}
{2}{U}, Discard this card: Counter target spell with mana value 4 or less.

Hexproof
When Dakran Shipcrusher enters, you may bless target creature.

Exile all creatures and all cards from each player's hand. Any player may play those cards during their turn for as long as they remain exiled, and mana of any type can be spent to cast those spells.
Exile Dawn of Peace.

You may pay {3}{R/G}{R/G} and sacrifice an artifact or enchantment rather than pay this spell's mana cost.
Trample

Look at the top six cards of your library. You may put a permanent card from among them onto the battlefield. If a creature is put onto the battlefield this way, put X +1/+1 counters on it, where X is its power. Put the rest of the cards on the bottom of your library in a random order.

Flying
When Gereishin enters, if it was cast, you may cast a Dragon spell or a spell with mana value 6 or less from your hand without paying its mana cost.
Once during each of your turns, when you spend less mana to cast a spell than its mana value, you may have Gereishin deal damage to up to one target creature equal to the difference.

This spell costs {1} less to cast for each card with a cycling ability in your graveyard.
Reach

Ward {3}
Whenever Horror of the Mystic Sea attacks, defending player mills two cards. If they milled two nonland cards this way, Horror of the Mystic Sea can't be blocked this turn.

Lifelink
Whenever you pay life, draw seven cards.

Flash
This spell costs {1} less to cast for each creature that died this turn.
When Krint enters, choose any number of target creature cards in graveyards that were put there from the battlefield this turn. Return them to the battlefield under your control. You lose life equal to their total mana value.

If you would add mana of a color to your mana pool, you may instead add an amount equal to your devotion to that color instead.

Flash
{1}{U/B}, Discard this card: Surveil 1, then draw a card.

This spell costs {1} less to cast for each counter among permanents you control.
Ward {2}

When Primordial Seas enters and whenever you cast a spell, create a token that's a copy of another target permanent you control.

At the beginning of your upkeep, if you have 50 or more life, you win the game.
At the beginning of each end step, you gain life equal to twice the amount of life you’ve lost this turn.

When this creature enters, reveal the top ten cards of your library. For each nonland, non-Golem permanent card revealed this way, you may sacrifice a permanent that shares a card type with it. If you do, put that permanent card onto the battlefield under your control. Put the rest on the bottom of your library in a random order.

Ninjutsu {6}{G}. This ability costs {1} less to activate for each attacking creature you control.
Trample

Vigilance, ward {2}
Memories you control are 4/4 creatures with vigilance and ward {2} in addition to their other types.