There are different sized tournaments, from the smaller League Challenges and League Cups to the massive Regional Championships and International Championships
White doesnt offer any cheap Giants like The Bears of Littjara, but it does offer many potentially good sweepers and ways to kill creatures that are not toughness-based
Theres a major downside: Roaring Moon ex then does 200 damage to itself
What more to say other then it's good and faithful
The Tyrant was out of place in Gatecrash , a decidedly non-artifact focused set, and so it flew under the radar for a while before folks realized oh, wait, its incredibly easy to get 20 artifacts under your control in any Eternal format. With two previous encore performances in Commander 2016 and Commander 2019 , Hellkite Tyrants low print run has meant its kept a price tag that fluctuates for years
Its an amazingly powerful card