
, Remove a counter from another permanent you control: Populate. Activate only as a sorcery. (Create a token that's a copy of a creature token you control.)
, Sacrifice another creature: Proliferate. Activate only as a sorcery. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Xavier Sal turns counters into an engine: proliferate counters across your board, then convert removed counters into populate triggers to flood the field with copies of your best creature tokens. You build a wide army of token copies while sacrificing fodder to grow everything, eventually overwhelming the table with combat damage or value loops.
Add token doublers (Doubling Season, Parallel Lives) and counter multipliers (Hardened Scales, Branching Evolution) to make every activation exponential. Include free or repeatable sacrifice outlets and aristocrat payoffs (Blood Artist, Zulaport Cutthroat) plus a Craterhoof-style finisher. Tighten the curve with strong Sultai ramp and protect Xavier with Heroic Intervention and Lightning Greaves so the engine survives to take over.
The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.
No combos found for this commander on Commander Spellbook.
Same color identity (BGU), by popularity.