You can 0 him to make three colorless mana with no restrictions on what it's used for
This fan-favorite mechanic allows you to tap your creatures in order to help pay for a spell's casting cost
If you want something a bit smaller in scale, cards like Sparkmage Apprentice, Ghitu Shaman, and Basalt Ravager can really bring the beats
On the battlefield, Elusive Otter can ensure it gets in for damage when its stats are high
We also have seen similar stuff like this before in Ivy, Gleeful Spellthief and Gargos, Vicious Watcher
My top-performing color combos were: Izzet (UR) Artifact Aggro Dimir (UB) Tempo with artifact synergy Rakdos (BR) Aggressive with solid removal and recursion One thing I like a lot about EOE, a lot of the color combinations had a slightly different feel than their usual archetypes, which was refreshing