Auto-translated
An irresistible urge to delve into Shadowverse cards, sort them by some criteria, etc., so another five minutes of autistic enjoyment, or which cards from Bahamut to promote to leaders. The main principle is that the character must be named, and not a faceless elf, professor, general, etc.
Forest

Instead of Arza, you can use Maahes, but in my opinion, Garuda fulfills the requirement for furry leaders.
Sword

Quite obvious, despite the wealth of options, these two just stand out.
Rune

Instead of Anya, you could use Dashka, but I'm pairing Anya with the Dovahkiin.
Dragon

Instead of the Dovahkiin, you could use Eifa, no, you can't use Eifa, the Dovahkiin is the best, and I'm pairing her with Anya.
Shadow

Khawi is the best husbando in Shadowcraft, even though he doesn't have the best artwork (and why is he shaving his armpits? O_O I have nothing against it, but... o_O).
Blood

Instead of Yurza, you could use that guy with the ward and mice, but Yurza is the most hardcore card in Bloodcraft.
Heavenly

There aren't many options.