The art depicts both fighting in the same battle, and we see two perspectives of that one fight - you can see Fang is in the background of Vanille's art and vice versa
Salubrious Snail (who puts out some great video content on YouTube) has a site with some handy calculators you can use, for free
Every time Daisy quests, each of your opponents has to discard a card
Rather than build him as a midrange, control-orientated commander, I feel he would truly shine with a focus on giving his token Army evasion and Haste
For example, the plane of Kaldheim is based on Norse myths, the plane of Bloomburrow is populated with anthropomorphic talking animals la Redwall , and the plane of Innistrad takes ample cues from Gothic and Lovecraftian horror
The reasoning is that they are worth two points, so losing one quickly turns the tide in favour of your opponent