I need help thinking of name

It's for my game that, believe it or not, I'm still working on. I've just been fixing typoes and trying to make things more clear. I do plan on having the second demo out soon. I found something like a free Megaupload so I hope that'll make it easier for you guys, but enough about that. I need help for summon names. Here's what I have so far:

Water - Undine (Serenity)
Fire - Surt
Wind - Sylph (Kagura/Ceil/Ariel)
Light - Shiisa (Bear)
Thunder - ???
Ice - Bestla
Earth - ???
Dark - ???
Wood - Dryad (Plum/Anise/Cherry)
Metal - ???
Day - Atmaruatsu
Night - Tsukiyomi

I'm trying to be different and give the summons individual names where possible. Like the Sylph's are wind and sky related and the Dryad's have plant, so if you wanna go ahead and make up individual names for the summons be my guest. But if you come up with more than one name, the first name will be the one that joins the team.

But like with Surt and Bestla where one is a Fire Giant and one the daughter of a Jotun (correct me if I'm wrong please) they already have their names.

PS I'm pretty sure I misspelled Shiisa, Atmaruatsu, and Tsukiyomi so could some one correct me please.

Water - Harsharath
Fire - Lothul
Wind - Laerii
Light - Sut
Thunder - Rokuul
Ice - Orl'luan
Earth - Garroth
Dark - Bet
Wood - Aaruu
Metal - Tring
Day - Raafin (one side)
Night - Raafin (other side)

do i win something?