Mountain (1366) [Secret Lair Drop Series] Goat You can only activate 1

You can only activate 1 "Artifact Sanctum" per turn

" —Vander

Set: Urza's Destiny Type: Artifact Creature — Masticore Rarity: Rare Cost: {4} At the beginning of your upkeep

Whenever an artifact an opponent controls is put into a graveyard from the battlefield

Mountain (1366) [Secret Lair Drop Series] Goat You can only activate 1Set: Secret Lair Drop Series Type: Basic Land Mountain Rarity: Rare ({T}: Add {R}.) 9. One day, the day will find its furthest limit, the place beyond which no days are imagined: a place long sealed away, lost within the endless mountain range. One day, the night will find this place, and breach it.