Volcano Hellion + Lich's Mirror + Gollum, Obsessed Stalker + The Moment
Volcano Hellion
Lich's Mirror
Gollum, Obsessed Stalker
The Moment
Infinite lifeloss for target opponent
How it works
Deal combat damage to an opponent using Gollum.
Activate The Moment's first ability by paying 2 and tapping it, phasing out Gollum until The Moment leaves the battlefield.
Cast Volcano Hellion by paying 2.
When Volcano Hellion enters the battlefield, it triggers, dealing an arbitrarily large amount of damage to you and Volcano Hellion.
Instead of you losing the game as a state-based action, Lich's Mirror causes you to shuffle your hand, graveyard and all permanents you own into your library, causing Gollum to phase in as The Moment leaves the battlefield, and setting your life total to 20.
At the beginning of your end step, Gollum triggers, causing an opponent to lose life equal to the life you gained this turn.
This clever loop leverages Volcano Hellion's self-inflicted entry damage to push your life total into massive negative territory, which would normally mean defeat. Instead, Lich's Mirror steps in as a safety net, resetting your board and life total to 20 while neatly bypassing the loss. Meanwhile, because Gollum, Obsessed Stalker is safely phased out by The Moment's activated ability during the chaos, it survives the Mirror's library shuffle and returns to the battlefield just in time for your end step. Once there, Gollum, Obsessed Stalker triggers to drain your opponents for all the life you "gained" from that colossal burst of damage, closing out the game in style.