To set this devastating loop in motion, Selfless Spirit first has to grant your board the gift of indestructible permanence, ensuring your key threats can survive the coming storm. Once protected, dealing an initial point of damage to Red Hulk sparks its Enrage ability, placing a +1/+1 counter on it and weaponizing those growing counters by firing damage straight at your other creatures. That incoming blow triggers Ill-Tempered Loner // Howlpack Avenger (or its nightbound face, Howlpack Avenger), whose passive ability immediately bounces the damage right back at Red Hulk. This creates an unstoppable, self-sustaining loop of endless ping damage and infinitely scaling +1/+1 counters that can quickly obliterate an opponent's life total.