mtg whenever you draw a card opponent loses life Scrawling Crawler (Foundations Promos) To some The 44 Best Life Loss

The real power comes from the Lecture Hall, a three-mana Room that rewards you for dealing damage to your opponent by putting a +1/+1 counter on a creature when they deal combat damage to a player

Note that the cards second ability triggers when you sacrifice a Treasure for any reason, not just to activate its mana ability

That's because persist checks the creature's existence just before it leaves the battlefield, and it still has all those counters on it at that point

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