msem-instigator

Target creature gets +1/+0 and gains first strike until end of turn.
Cycling {2} ({2}, Discard this card: Draw a card.)

Menace (This creature can't be blocked except by two or more creatures.)
Cycling {R} ({R}, Discard this card: Draw a card.)

During your turn, cards in your hand have cycling {X}, where X is the number of cards you've discarded this turn.
At the beginning of each end step, create a 1/1 blue Tentacle creature token for each card you discarded this turn.
Cycling {R} ({R}, Discard this card: Draw a card.)

Circling Predators deals X damage to each creature, where X is 2 plus the number of cards with a cycling ability in your graveyard.
Cycling {2} ({2}, Discard this card: Draw a card.)

{T}: Conchspear Hunter deals 1 damage to any target. Activate only if you control three or more artifacts.

Choose one —
• Destroy target artifact.
• Crushing Grip deals 2 damage to any target.

Choose one —
• Create a 3/3 red Shark enchantment creature token.
• Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn.

Exile the top card of your library. You may play that card until your next end step. At the beginning of the next end step, if you didn't play the exiled card, return Curious Disturbances from your graveyard to your hand.

Whenever you draw your second card each turn, put a +1/+1 counter on Current Surfer.
{R}, Discard your hand, Sacrifice Current Surfer: Draw X cards, where X is its power. At the beginning of the next end step, discard your hand.

Slipstream (This creature can't be blocked as long as only creatures with slipstream are attacking.)
Cycling {2} ({2}, Discard this card: Draw a card.)

Trample
When Depthlight Frontliner enters the battlefield, you may salvage up to one instant card and up to one sorcery card. (Exile those cards 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.)

Double strike, trample, indestructible, haste
When Dredgeline Colossus enters the battlefield, 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.)

{3}{R}: Target creature can't be blocked this turn if it's an artifact creature or has power 2 or less.

During each of your turns, you may cast a card with a cycling ability from your graveyard by discarding a card in addition to paying its other costs. If that spell would be put into your graveyard, exile it instead.
Cycling {2} ({2}, Discard this card: Draw a card.)

Exile the top five cards of your library. You may play one of them from exile this turn.

Final Struggle deals 3 damage to target creature. When that creature dies this turn, exile it and create a 3/3 red Shark enchantment creature token.

Finish Off deals 2 damage to any target. If you've drawn two or more cards this turn, it deals 3 damage instead.
Cycling {3} ({3}, Discard this card: Draw a card.)

First strike
When Frontline Descender enters the battlefield, you may salvage an instant or sorcery card. (Exile one 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.)

At the beginning of your draw step, draw an additional card. If you control three or more artifacts, draw two additional cards instead.
At the beginning of your end step, discard your hand.

Whenever Greenscale Bully deals combat damage to a player, create a Treasure token. (It's an artifact with “{T}, Sacrifice this permanent: Add one mana of any color.”)

When Highbeam Hulk enters the battlefield, you may discard a card. If you do, draw a card.
Cycling {2} ({2}, Discard this card: Draw a card.)

Into Waiting Jaws deals 5 damage to target creature. If you sacrificed a permanent or discarded a card this turn, Into Waiting Jaws deals 3 damage to that creature's controller.

Haste
When Jetskate enters the battlefield, if you've drawn two or more cards this turn, it deals 2 damage to any target.
Cycling {R} ({R}, Discard this card: Draw a card.)

Slipstream (This creature can't be blocked as long as only creatures with slipstream are attacking.)
Whenever you cast an enchantment, instant, or sorcery spell, Noble Barracuda gets +1/+0 until end of turn. Scry 1.

Trample, haste
When Oil Driller enters the battlefield, salvage two cards at random. (Exile those cards 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.)
At the beginning of your end step, sacrifice Oil Driller.