Just thought this would be useful...Monster Manual says:
MINOTAUR
Average Height: 7'1" - 7'5"
Average Weight: 320-350 lb
Ability Scores: +2 Strength, +2 Constitution
Size: Medium
Speed: 6 Squares
Vision: Normal
Languages: Common
Skill Bonuses: +2 Nature, +2 Perception
Ferocity: If you are reduced to 0 hit points, you can make a melee basic attack as a free action before falling unconscious.
Oversized: You can use weapons of your size or one size larger than you as if they were your size.
Goring Charge: You can use goring charge as an encounter power.
I won't bother with the Goring Charge details. Oversized is a little confusing, however (if the weapon is your size there is no issue, is there? Yet it specifies it anyway. O.o). I'm not sure if it means you can use a Greatsword in one hand or just use one of a higher size category. However, as always, what the DM says, goes, and if Pyra let you have a Bastard Sword then technically you can have one as his word always overwrites the rules.