mtg opponent draws card Psychosis Crawler [Commander 2018] Whenever an opponent draws a card Oh you draw cards LOSE

7: You get an emblem with "Whenever you cast a spell, this emblem deals 5 damage to any target." Legendary Planeswalker - Chandra Gideon Blackblade During your turn, Gideon Blackblade is a 4/4 Human Soldier creature with indestructible that's still a planeswalker

Tragic Slip

If you want a better combo then toss in Fury Storm, cast your commander a single time, cast Storm targeting any instant / sorcery and have the copy target the original Storm for infinite Storm copies

The trigger to pay 1R can be paid when your opponents attack, too, meaning they will do way more damage to other opponents but crucially the same amount of damage to you, as it wont increase when they attack you