Equipped creature gets +2/+2.
As long as there are five colors among permanents you control, equipped creature has indestructible.
Equip {5}. This ability costs {1} less to activate for each of its target's colors.

When The Quindral Accords enters, make a pledge.
Pledge — {3}{W}{U}{B}{R}{G}: Create a 5/5 Robot artifact creature token named Sentry of the New World that's all colors, then look at the top five cards of your library. Put one of them into your hand and the rest into your graveyard. Activate only as a sorcery unless you're making a pledge.

Create two 1/1 white Golem creature tokens.
Landfall — {W}, Exile The Ruins Awaken from your graveyard: Create a 1/1 white Golem creature token. Activate only as a sorcery and only if a land entered the battlefield under your control this turn.

Whenever one or more creature cards are put into your graveyard from anywhere, you may choose one and pay {X}, where X is the chosen card's mana value. If you do, create a tapped token that's a copy of it.
{T}: Target player mills two cards.

When The Smoking Strand enters, you may search your library for a planeswalker card, reveal it, put it into your hand, then shuffle.
Planeswalkers you control have “+1: Draw a card.”

Decayed
You may cast The Venerable Veteran from your graveyard.

[–1]: Create a red and green Subroutine enchantment token named SAVE with “Whenever this Subroutine runs, exile the top card of your library. You may play it this turn.”
[–1]: You may sacrifice an enchantment. If you do, search your library for an enchantment card with mana value equal to 1 plus the sacrificed enchantment's mana value, put it onto the battlefield, then shuffle.

Tap all permanents.
Exile The World Stood Still.

Draw a card if a creature you control has flying. Do the same for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance.

This land enters tapped unless you control one or fewer other lands.
{T}: Add {G} or {W}.
Cycling {2}

Draw three cards. Then discard two cards unless you discard a card with flashback.
Flashback {6}{U}{U}

Reach
Amity — Whenever you attack with Thornfist Bruiser and exactly one other creature, Thornfist Bruiser must be blocked this combat if able.

When Thornlasher Mortis enters, mill two cards.
Whenever one or more cards leave your graveyard, create a 1/1 green Saproling creature token. This ability triggers only once each turn.

{1}, Sacrifice another creature: Put a +1/+1 counter on this creature.

When Thoveus Adi dies, put him into his owner's library third from the top.
[+1]: At the beginning of your next upkeep, draw a card.
[–3]: At the beginning of target opponent's next end step, that player sacrifices two creatures.
[–8]: When you next cast a Thoveus spell, take two extra turns after this one.

Flying, haste
Instant and sorcery spells cost {2} less to cast.
Whenever an opponent casts their second spell each turn, create a 5/5 red Dragon enchantment creature token with flying.

During your turn, this creature has first strike.
{1}{R}, Discard this card: It deals 3 damage to target creature. If that creature would die this turn, exile it instead.

Ninjutsu {1}{U}
If you would draw a card except the first one you draw in each of your draw steps, draw two cards instead.

You may tap an untapped legendary creature you control instead of paying this spell's mana cost.
Enchant creature.
Enchanted creature gets +1/+0 and has menace.

When this creature enters, create a red Subroutine enchantment token named BOOST with “Whenever this Subroutine runs, add {R}.”

Whenever a creature or land you control enters, you gain 1 life.
Creatures you control get +1/+1 as long as you have at least 3 life more than your starting life total.

Sacrifice each creature you control. Each opponent sacrifices that many creatures. Draw a card for each creature that's died this turn.

Vigilance, reach
When Thundering Serpent enters, you gain 6 life.

Choose one —
• Target creature you control deals damage equal to twice its power to target creature or planeswalker you don't control.
• Destroy each artifact or enchantment with mana value less than or equal to the power of target creature you control.

Whenever you cast a creature spell, put X depth counters on Tide's Ire, where X is that spell's mana value.
Remove ten depth counters from Tide's Ire: Create an 8/8 blue Kraken creature token.
Remove thirty depth counters from Tide's Ire: Create Tromokratis, a legendary 20/20 blue Kraken creature token with trample and hexproof.