Other blue creatures you control get +1/+1. {U}: Target artifact creature becomes blue until end of turn. Tap an untapped blue creature you control: Add {C}{C}. Spend this mana only to cast artifact spells or activate abilities of artifacts. 1/3
As an additional cost to cast this spell, sacrifice an artifact. Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you’re done activating mana abilities pays for {1}.) Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.
You may tap or untap target permanent, then you may tap or untap another target permanent. Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)
At the beginning of your upkeep, you may look at the top card of your library. If it’s a creature card, you may reveal it and put a quest counter on Quest for Ula’s Temple. At the beginning of each end step, if there are three or more quest counters on Quest for Ula’s Temple, you may put a Kraken, Leviathan, Octopus, or Serpent creature card from your hand onto the battlefield.
Flash Flying Whenever Malcolm, Alluring Scoundrel deals combat damage to a player, put a chorus counter on it. Draw a card, then discard a card. If there are four or more chorus counters on Malcolm, you may cast the discarded card without paying its mana cost. 2/1
You may have Mirrormade enter as a copy of any artifact or enchantment on the battlefield.
Flash You may have Stunt Double enter as a copy of any creature on the battlefield. 0/0
Flying You have no maximum hand size. Whenever a creature token you control deals combat damage to a player, draw a card. 3/3
Whenever a player casts an instant or sorcery spell, each other player copies that spell. Each of those players may choose new targets for their copy.
Ninjutsu {2}{U}{U} ({2}{U}{U}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever Higure, the Still Wind deals combat damage to a player, you may search your library for a Ninja card, reveal it, put it into your hand, then shuffle. {2}: Target Ninja creature can’t be blocked this turn. 3/4
Flying {T}, Tap two untapped Birds you control: Return target permanent to its owner’s hand. 1/2
Flying When Narcomoeba is put into your graveyard from your library, you may put it onto the battlefield.
Level up 1 (1: Put a level counter on this. Level up only as a sorcery.) [Level 2-3] Flying [3/3] [Level 4+] Flying Other Merfolk creatures you control get +1/+1. [4/4]
Whenever you cast a nonlegendary creature spell with flying, you may copy it, except the copy is a 1/1 Spirit in addition to its other types. Do this only once each turn. (The copy becomes a token.) 3/3