I was looking through The base stats at Pokefor.tk for a tank, when I saw umbreon. Its base def is 110 and its HP is 95, wich makes me think it wouldnt be too bad a choice, since most of the others are rock/ground, and I dont want half my team to be weak too water. Would umbreon be a viable choice?

Heres the pokeon Im considering now.

Groudon-Att Sweeper
I know he's legendary, but I really like his graphic, compaired to the rest
of the R&S pokemon that I hate.

Milotic-Spc Sweeper

Ninetails- Trapper

Umbreon- Possibly tank

Crobat- Hazer

Belossum-Aromatherapy
Im not sure I even want/need one of these.