(First floor.) Ration of Food blocks the door. Mage pretty much starts with everything you need to solve that room.
Edit: This seed is crazy, already with artifact and wand on the first three floors. LBX-MZH-SYDv2.5.2 (Mage; On Diet&Faith Is My Armor&Forbidden Runes)
I don’t get it. What have you solved here that’s specific to mage? You can just step on the flock traps or throw literally any item on them. If you don’t want to wait around for them to disappear, you can do this and then walk away and keep exploring.
It’s just about the starting items: Staff of Magic Missile, Cloth Armor, Ration of Food and 0/20 waterskin.
Only the food ration will be unavailable, but the sheep are long gone when you get hungry. Also throwing waterskin wouldn’t be an issue, but you’ll have to wait with collecting dews.