Foundry Beetle is a rare Artifact Creature — Equipment Insect card from Alchemy: Kamigawa (YNEO), collector number 19.
First strike Equipped creature has first strike. At the beginning of your upkeep, a random artifact card in your hand perpetually gains "This spell costs {1} less to cast." Reconfigure {R} ({R}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)