So would I be able to do this?

[Spellcaster2000]

I'm planning on making a new set of cards. Would I be able to have these two cards:

Elemental Beast - Wolf
Elemental Beast of Fire - Wolf

and have both being treated as if being in the "Elemental Beast" archtype and the second one also being part of the "Elemental Beast of Fire" archtype? So that both could be affected by a card that affects Elemental Beasts and only 1 being affected by cards that effect Elemental Beast of Fire cards?

[AGATHODAIMON BANGTAIL COW]

Yeah. There's the whole "XX-Sabers are X-Sabers but X-Sabers aren't XX-Sabers" thing, so go ahead.

[Spellcaster2000]

I didn't think of that, but you're right. XX-Saber has X-Saber in it's name so it is one, but not vise versa. Thanks.

[-Griffin]

A better example would be that Verz are Inverz but Inverz are not Verz, since I don't think there's any actual support which excludes XX-Sabers or X-Sabers, they all affect both.