Since you're often making giant battlefields of creatures, protection is important, and having access to white and blue lets you run protection and counterspells to ensure they stick around
Vorinclex, Monstrous Raider - Whats this guy doing here
Storm-Kiln Artist is a four-mana 2/2 with uncommon rarity
If youre looking for some extra reading on Kaldheim and Norse Mythology, particularly when it comes to modern day Heathenry, check out this excellent article from Jacob over at Hipsters of the Coast
This makes it so that if they connect for damage, it'll give your opponent a poison counter, and ten poison counters mean they lose the game
Where thisll shine is in Witherbloom, Abzan and Orzhov lists that do a lot of life gain