[quote=@Lugubrious]
<Snipped quote by Burthstone>

He could be literally anything of hearts and it would still make sense.  A lower number might even make more sense given his power level, which everything else is seemingly arranged by.

Were you thinking Phoenix Wing = Diamonds, Dragon Fang = Hearts, Iron Enigma = Spades, Frenzy Plant - Clubs?  If so, and people actually kinda want to make cards, then consider this for Frenzy Plant:

Ace - Cormorant Sanders
King - Zander Louvier
Queen - Indigo Afina
Jack - Ludo the Hermit
Ten - Hyun Sasithom
Nine - Demetri Argentum
Eight - Xyster
Seven - Sengoku Enma
Six - Thor
Five - Ike Riven
Four - Eliza
Three - Gabriel
Two - Cecilia Lenin
[/quote]

I dunno I thought using number 9 to resemble cat lives was clever.

Though either way works xD

Mhmm Karn is also lovable (though Prince technically is more considering his magic is based on it)

So yeah joker may work. Or maybe he could have the 9 of diamond. Since he's a kitty too. XD