Foundry Beetle
{1}{R}Artifact Creature — Equipment Insect
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.)