Cast Realm-Scorcher Hellkite by paying 4 and sacrificing another artifact, enchantment or token.
When Realm-Scorcher Hellkite enters the battlefield, it and Ganax trigger twice.
Resolve both Realm-Scorcher Hellkite triggers, adding 5.
Resolve both Ganax triggers, creating two Treasure artifact tokens.
Activate Temur Sabertooth by paying 1, returning Realm-Scorcher Hellkite to your hand from the battlefield.
Repeat.
Once you have infinite Treasure tokens, you may sacrifice them for infinite mana, and use Realm-Scorcher Hellkite to deal infinite damage to any target(s).
This dazzling loop relies on Virtue of Knowledge to double every entering trigger, turning Realm-Scorcher Hellkite and Ganax, Astral Hunter into an engine that generates far more resources than it consumes. When you recast the Hellkite—bargining away one of the Treasures left behind—Ganax and the Hellkite both double-trigger to yield a surplus of mana and multiple new Treasure tokens. You then use Temur Sabertooth to bounce the Hellkite back to your hand, resetting the loop so you can repeat the process indefinitely. Once you have built up infinite Treasures and mana, Realm-Scorcher Hellkite's activated ability can be fired off as many times as you like to burn out every opponent at the table.