Foiltruss Leafworm

As an additional cost to cast Foiltruss Leafworm
sacrifice any number of artifacts. Foiltruss
Leafworm enters the battlefield with a number
of +1/+1 counters equal to the total mana cost
of artifacts sacrificed this way.
Flying, artifact-landwalk
{t}: Put a +1/+1 counter on Foiltruss Leafworm.
Each player sacrifices a non-token artifact.