I plan on living forever. Or die trying.
Centaur is Monstrous Humanoid unless Angus has something extra going for him. But he is already enhanced by his horseshoes of speed so shouldn't be a problem. And we DO NOT want him NOT to attackI'm working on my spell list now, and I found this neat little 1st-level spell called 'Traveller's Mount'. For 1 hour per level (which means 11 hours) a horse or similar mount can increase its speed by 20 feet. The only downside is it cannot attack.
I could prepare that spell for all of our horses. Does Angus count as a 'magical beast'?