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