Proft's Eidetic Memory [Murders at Karlov Manor] Worm Spend this mana only to

Spend this mana only to cast creature spells or activate abilities of a creature or creature card

it's available

transform Jerren

Dragons' Legacy deals damage equal to that spell's mana value to any target that isn't a commander

" —*The Antiquities War*

Proft's Eidetic Memory [Murders at Karlov Manor] Worm Spend this mana only toSet: Murders at Karlov Manor Type: Legendary Enchantment Rarity: Rare Cost: {1}{U} When Proft's Eidetic Memory enters the battlefield, draw a card. You have no maximum hand size. At the beginning of combat on your turn, if you've drawn more than one card this turn, put X +1 +1 counters on target creature you control, where X is the number of cards you've drawn this turn minus one.