Nettle Sentinel [Eventide] 185 You may cast the copy

You may cast the copy without paying its mana cost

and "At the beginning of the end step

Set: Dark Revelation Volume 4 Card type: Effect Monster Rarity: Rare Attack: 1700 Defense: 1500 Once per turn

Set: Antiquities Type: Enchantment Rarity: Uncommon Cost: {B}{B} Sacrifice a creature: Destroy target artifact

Set: Team Rocket 1st Edition Type: Grass Rarity: Common

Nettle Sentinel [Eventide] 185 You may cast the copySet: Eventide Type: Creature Elf Warrior Rarity: Common Cost: {G} Nettle Sentinel doesn't untap during your untap step. Whenever you cast a green spell, you may untap Nettle Sentinel. Though Shadowmoor's monster haunted wilds beckon, she never leaves her post.