Axgard Artisan

Creature — Dwarf Artificer

Whenever one or more +1/+1 counters are put on this creature for the first time each turn, create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")

Skodreg knew the Phyrexians wouldn't appreciate his craftsmanship, but they'd get an up-close look just the same.