[Avathar]

Manwë
does Wind/Holy damage to all enemies, characters become Guard against Shadow

Mandos
does Non-elemental damage to one enemy, one character becomes Guard against Death

Aulë
does Earth/Holy damage, to all enemies, characters' Attack rises

Melkor
does Fire/Ice/Thunder damage to all enemies, characters become Guard against Holy

Ulmo
does Water/Holy damage to all enemies, characters' Defence rises
Tulkas non-elemental, holy

Oromë
does Wind/Water damage to one enemy, one character gets Haste

(The names are those of the Gods in the World of Tolkien, if anyone wonders)