Arachnus Web - Modern Masters 2017 - 118

Enchantment — Aura

Mana Cost: {2}{G}

Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated.
At the beginning of the end step, if enchanted creature's power is 4 or greater, destroy this Aura.

Common · Modern Masters 2017 · #118 (MM3)

Illustrated by Karl Kopinski