Minwu, White Mage While 5 mana for a 3/3 is a lot, Minwu is going to be welcome to all sorts of cleric typal decks like my All Denominations Clerics, as giving a whole team counter on buff is distinct from the gains we normally see on creatures like Aerith Gainsborough
It won't enter with its daybound face up and then transform
Illustrated by Viacom Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
2 Katilda, Dawnhart Prime Katilda, Dawnhart Prime, while a fantastic Human commander, is a must-run in any Human deck that can play Selesnya (green/white) colors
The biggest innovation ties into my pick for the year, Legions
Eight mana spells should finish the game, and Archon does a great approximation of that for players who prefer creatures to instants or sorceries