Infinite +1/+1 counters on a creature, Infinite +1/+1 counters on Golems you control
Cast Mox Diamond either from your hand by paying or from the top of your library by paying 0 life.
Showdown of the Skalds triggers, putting a +1/+1 counter on Arcbound Reclaimer.
Choose to sacrifice Mox Diamond instead of having it enter the battlefield.
Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Mox Diamond from your graveyard onto the top of your library.
Repeat.
Component Cards
How It Works
Cast Mox Diamond either from your hand by paying or from the top of your library by paying 0 life.
Showdown of the Skalds triggers, putting a +1/+1 counter on Arcbound Reclaimer.
Choose to sacrifice Mox Diamond instead of having it enter the battlefield.
Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Mox Diamond from your graveyard onto the top of your library.
Repeat.