Baloth Cage Trap (MM3 120)

Instant — Trap • Mana cost: {3}{G}{G} • Modern Masters 2017 • Uncommon

If an opponent had an artifact enter the battlefield under their control this turn, you may pay {1}{G} rather than pay this spell's mana cost.
Create a 4/4 green Beast creature token.

Illustrated by Austin Hsu.