The Raging Black Bull

Recombination Magic: The Raging Black Bull (組替魔法『黒の暴れ牛号』) is a Recombination Magic spell.

Description
With an open grimoire, the user rearranges a magic house into the shape of a giant bull that they can control.

In Combat Style (戦闘スタイル), the house shifts into a bull that stands on two legs. It can attack with its fists or with cannons that fire blasts of mana. These blasts can also be used to launch and amplify other spells and to launch people.

In Charging Style (猛進スタイル), the house shifts into a bull that runs on all four legs.

For flying through the air, the full house can shift into a larger version of The Mini Bull, enabling it to carry far more people; however, due to the increase in size and weight, this transformation requires much more magic power. The base has thrusters on the bottom to push itself off the ground and on the back to propel itself forward. It also can make use of the cannons to bombard targets.