As I don't have much money and don't need 100w tube of power, I was wondering if this amplifier could be heard over a drum, or if I should buy something like a 20-30 w combo.
If your drummer is pretty quiet, then yeah you can get it over the drums, but it won't stay clean for long. 15-20 watts would probably be better for something like that but again, your drummer would have to be pretty quiet.
I can hear it over drums and another guitarist and bassist. But then it won't be clean, and it's boosted by an OD pedal even then to tighten tone and shiz.