Rhystic Study [Jumpstart] XY123 if that creature came under

if that creature came under its owner's control since the beginning of their last upkeep

-8: Chandra Nalaar deals 10 damage to target player or planeswalker and each creature that player or that planeswalker's controller controls

you may exile it and put three time counters on it

Set: Secret Lair Drop Series Type: Legendary Creature — Demon Rarity: Mythic Cost: {4}{B}{B}{B}{B} Flying

Exile Perilous Vault: Exile all nonland permanents

Rhystic Study [Jumpstart] XY123 if that creature came underSet: Jumpstart Type: Enchantment Rarity: Rare Cost: {2}{U} Whenever an opponent casts a spell, you may draw a card unless that player pays {1}. Friends teach what you want to know. Enemies teach what you *need* to know.