And then a mystical wyrm to demonstrate what other types of beasties might be possible.
Conjure the Mythical Wyrm
Creo Animal / Mentem Auram Vim 75, R: Touch, D: Momentary, T: Individual, Ritual
A magical drake is created with 11 Magic Might, +7 size, and a selection of powers such as fire-breathing, fire-immunity, and supernatural toughness. The magical beast is permanent and intelligent. The creature will have a personality and traits of its own and will initially serve the caster in a loyal manner.
(Base 50, +1 Touch, Mentem for intellect, Ignem / Auram for powers and resistance to fire, +2 size increase, +1 Rego for loyalty to caster, +1 Might increase)
Find this spell and hundreds more for Ars Magica in my grimoire.