cards like pokemon Latias & Latios Team up PROXY Card Any cards with similar vibes?

The Myriad Pools can offer some mana ramp and utility, but you need a lot of permanents in your deck for this to flip

Ankh of Mishra Mishra Mishra's Bauble Mishra's Command Mishra's Domination Mishra's Factory Mishra's Foundry Mishra's Groundbreaker Mishra's Helix Mishra's Juggernaut Mishra's Onslaught Mishra's Research Desk Mishra's Self-Replicator Mishra's War Machine Mishra's Workshop Mishra, Artificer Prodigy Mishra, Claimed by Gix Mishra, Eminent One Mishra, Excavation Prodigy Mishra, Lost to Phyrexia Mishra, Tamer of Mak Fawa

Tyvar, the Pummeler (or Heraldic Banner) can work wonders with an elf leader, but they work with any kind of creature or go-wide deck

Its hard to end up with exactly what you want since an opponent chooses which of the three cards you get