When Ruthless Technomancer enters the battlefield, it triggers, causing you to sacrifice Icewind Stalwart and create at least six Treasure tokens.
Activate three Treasures by tapping and sacrificing them, adding ({2} magic symbol) ({B} magic symbol) .
Activate Ruthless Technomancer by paying ({2} magic symbol) ({B} magic symbol) and sacrificing three Treasures, returning Icewind Stalwart from your graveyard to the battlefield.
When Icewind Stalwart enters the battlefield, it triggers, blinking Ruthless Technomancer.
Repeat from step 2.
Notes
If you have four or more experience counters, this combo nets infinite Treasure tokens.