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.

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.

{T}: Add one mana of any color. Put a tide counter on Tidelock Pearl.
{1}{U}, {T}, Sacrifice Tidelock Pearl: Search your library for a Kraken, Leviathan, Octopus, or Serpent card with mana value less than or equal to the number of tide counters on Tidelock Pearl, put it onto the battlefield, then shuffle.

Tidewake Walker enters with a hexproof counter on it.

Flying
Ward—{2}, Pay 2 life.
Whenever you cast a noncreature spell, draw a card.

{T}: Add {C}.
{4}, {T}, Sacrifice Timeworn Crags: Destroy target nonbasic land. This ability costs {1} less to activate for each nonbasic land you don't control.

When Tireless Aspirants enters, you may draw a card. If you do, discard a card.
Wander {1}{U}

Tiril District enters tapped unless you control a Plains, an Island, and a Swamp.
{T}: Add {W}, {U}, or {B}.

As an additional cost to cast this spell, sacrifice a creature.
Return to the battlefield target creature card from your graveyard with mana value less than or equal to 2 plus the sacrificed creature's mana value.

When Together in Arms enters, create two 1/1 colorless Soldier creature tokens.
You controlled a spell that targeted a creature you controlled this turn.
You controlled an ability that targeted a creature you controlled this turn.

{1}, {T}: Add one mana of any color.
{T}: Add one mana of any color. You can't spend this mana to cast spells from your hand.

Ward {1}
When Transfixing Troupe enters, exile target creature an opponent controls until Transfixing Troupe leaves the battlefield.

This spell costs {1} less to cast for each Elemental you control.
Haste

Target opponent reveals cards from the top of their library until four land cards are revealed. Exile each card revealed this way. If seven or fewer cards were exiled this way, scry 3.

This spell costs {2} less to cast if your devotion to blue is three or greater.
Scry 2, then draw two cards.

{1}, Remove a +1/+1 counter from Traveler of Dawn: Exile target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Exile the top three cards of your library. Choose two of them. You may play the chosen cards until the end of your next turn.

Creatures you control can't be blocked unless defending player pays {1} for each creature blocking it.
Creatures can't attack you unless their controller pays {1} for each creature they control that's attacking you.

Counter target spell with mana value less than or equal to the number of cards in its controller's graveyard.

Whenever Twilight Vagabond attacks, put a +1/+1 counter on it.
Cybersoul {2}{W}

Double strike

As long as it's your turn, Ultraviolet Maniac has lifelink.
{VP}{VP}{VP}: Until end of turn, whenever you gain life, each opponent loses that much life.

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. You may spend mana of any type to activate its abilities this turn.

Lifelink
Spells you cast and abilities you activate that target creatures you control cost {2} less. This effect can't reduce the mana in that cost to less than one mana.

Indestructible
Equipped creature has indestructible as long as it's your turn.
Equip {1}
Spellcharge 5