PremodernHQ Reference Card
Goblin Welder + Phyrexian Devourer + Altar of Dementia
Archetype:
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Metadata
The Result
"Mills the opponent's entire library (one-sided deck-out)"
Required Cards
Goblin Welder
Welds Phyrexian Devourer onto the battlefield from the graveyard, swapping it for another artifact at instant speed
Phyrexian Devourer
Exiles the library to load up on +1/+1 counters, becoming arbitrarily large
Altar of Dementia
Sacrifice outlet: mills the opponent for the creature's (huge) power
Execution Steps
Get Phyrexian Devourer onto the battlefield. Goblin Welder can weld it in from the graveyard, sacrificing a spare artifact, so it never has to be hard-cast.
Activate Phyrexian Devourer, exiling cards from the top of your library to pile on +1/+1 counters. Hold priority while its sacrifice trigger (power 7+) is on the stack.
In response, sacrifice Phyrexian Devourer to Altar of Dementia, milling the opponent for a number of cards equal to the Devourer's now-enormous power.
Mill the opponent's entire library; they lose on their next draw.
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