mtg cards similar to doubling season MTGNexus it puts twice that many of those counters on that permanent instead Doubling Season alternatives : r/EDH

Or if you want to be a little cheeky, you can Imprint it with interactive spells, like Counterspell, Reality Shift, or Suspend

Toss in Strionic Resonator or Lithoform Engine to double up on the triggers

Want to draw and gain double from Momentous Fall

However, if you emphasize the handful of creatures you have of size, such as Oona and Meloku and such, you can probably get away with it

Armadillo Cloak Invasion draft had five two-color combinations, and green-white was essentially Armadillo Cloak

Now comes the difficult part: between Carmen and Clavileno I actually think Carmen has a much higher power ceiling, but to reach that ceiling you'd need to start moving away from Vampires and into more efficient sacrifice triggers (Pitiless Plunderer) and lifegain payoffs (Archangel of Thune)