Creatures (15) Lands (19) Spells (26) If youre looking for a more degenerate home for Treasure Cruise, something involving Jeskai Ascendency may work since that card is so effective at filling your graveyard as you combo off, but instead Ive gone with this hyper-aggressive Izzet Prowess build which epitomises what I think of when I think of a Treasure Cruise deck: raw efficiency, hurling resources across the table, and the ability to sideboard in some cheap counterspells like Spell Pierce once you know what interaction suits the matchup best
Splinter Twin 6.5/10 Reasonable redundancy on the parts and not too demanding on your deck or full of awful cards
At this point Isshin started going off and nearly killed me with a combination of Tectonic Giant, Krenko, Tin Street Kingpin, Isshin, Two Heavens as One, Aurelia, the Warleader but they tapped out for Dihada, Binder of Wills to give Krenko vigilance, lifelink and indestructible
Multi-Instance Productivity Run multiple instances at the same time to boost efficiency