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I've had more success by including additional characters, which increase the chance of curving out perfectly and are generally better draws in the late game

Proliferating twice is very flexible, so you can go with blue creatures that have +1/+1 counters, planeswalkers, or artifacts with charge counters

11/25 Mew

Tectonic Hellion That's one way to answer ramp strategies

This makes it incredibly useful with cards that rely on charge counters for value, like Lux Cannon, Magistrate's Scepter, or Astral Cornucopia

Tekuthal, Inquiry Dominus | Illustration by Martin de Diego Sadaba The Dominus cycle focuses on five legendary Phyrexian horror creatures