Its a really powerful and really popular Temur commander, and you can tweak it based on your meta and personal play style
Magic s own multiverse has a mix of planes with only one set (Kaldheim, New Capenna, Thunder Junction) and planes with a ton of material (Dominaria, Ravnica, Zendikar)
Brackwater Elemental Combat Courier Dregscape Zombie Etherium Abomination First-Sphere Gargantua Grixis Grixis Slavedriver Kathari Bomber Kathari Screecher Mishra's Juggernaut Molten Gatekeeper Rotting Rats Scourge Devil Scrapwork Cohort Scrapwork Mutt Scrapwork Rager Tocasia's Onulet Undead Leotau Viscera Dragger Vithian Stinger
Just draw into whatever you need to have a proper advantage over your opponents
Lastly, there's one card, bear druid Doc Aurlock, Grizzled Genius, that reduces plotting costs
The fact that he has Ward is actually quite ironic since most tables will likely leave Winter alive most of the time out of greed