Through the Breach (Invocation) [Amonkhet Invocations] Fish it's an artifact creature with

it's an artifact creature with power and toughness each equal to its mana value

As long as your devotion to white and blue is less than seven

target player may put Okaun into their hand from their library

Set: Champions of Kamigawa Type: Legendary Creature — Rat Rogue Rarity: Rare Cost: {3}{B}{B} All Rats have fear

' priceless

Through the Breach (Invocation) [Amonkhet Invocations] Fish it's an artifact creature withSet: Amonkhet Invocations Type: Instant Arcane Rarity: Mythic Cost: {4}{R} You may put a creature card from your hand onto the battlefield. That creature gains haste. Sacrifice that creature at the beginning of the next end step. Splice onto Arcane {2}{R}{R} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)