Nettle Sentinel
Creature — Elf Warrior
This creature doesn't untap during your untap step.
Whenever you cast a green spell, you may untap this creature.
Though Shadowmoor's monster-haunted wilds beckon, she never leaves her post.
Kev Walker
The List (PLST)
• #A25-182Rulings
Nettle Sentinel's triggered ability resolves before the spell that caused it to trigger. The ability will resolve even if that spell is countered.
(wotc • 2018-03-16)
Rulings
Nettle Sentinel's triggered ability resolves before the spell that caused it to trigger. The ability will resolve even if that spell is countered.
(wotc • 2018-03-16)