Lil Kiora, the Hidden Gem

0: Create a legendary green and blue artifact token named Hidden Gem.
0: Create a legendary 0/1 blue Octopus creature token named Bubbles.
-3: Sacrifice a card named Hidden Gem and a card named Bubbles. Create a 10/10 Kraken creature token with Trample, Hexproof, and Islandwalk.