Frogmyr Enforcer

Prototype {3}{R} — 2/2 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6ohm8tco1ppb1hlidafcen.