{U}, {T}: Draw a card, then discard a card. Delirium — {2}{U}, {T}: Draw a card. Activate only if there are four or more card types among cards in your graveyard.
Target noncreature artifact you control becomes a 0/0 artifact creature. Put four +1/+1 counters on each artifact that became a creature this way. Overload {4}{U}{U}
{1}, Discard a card: Create a 0/3 blue Crab creature token. Delirium — Crabs you control get +1/+1 as long as there are four or more card types among cards in your graveyard.
Enchant creature When So Shiny enters the battlefield, if you control a token, tap enchanted creature, then scry 2. Enchanted creature doesn't untap during its controller's untap step.
When Specimen Collector enters the battlefield, create a 1/1 green Squirrel creature token and a 0/3 blue Crab creature token. When Specimen Collector dies, create a token that's a copy of target token you control.
Svyelun of Sea and Sky has indestructible as long as you control at least two other Merfolk. Whenever Svyelun attacks, draw a card. Other Merfolk you control have ward {1}.
Discard a card: Cabal Initiate gains lifelink until end of turn. Threshold — Cabal Initiate gets +1/+2 as long as seven or more cards are in your graveyard.
Clattering Augur can't block. When Clattering Augur enters the battlefield, you draw a card and you lose 1 life. {2}{B}{B}: Return Clattering Augur from your graveyard to your hand.