Idle curiosity but what about making things more interesting by allowing players who draft legends to use those legends as commanders? The problem is that there are only 12 legends legal in pauper (and 10 of them are only legal because of Masters Edition 3). All except 2 are terrible Legends legends, so things wouldn't really be broken. The other two are two bad monored legends from Homelands. But with a 360 card cube it might not come up enough to matter since you'd need the right colors and to actually draft it. Maybe better for peasant or a normal cube.
Bottle gnomes seems pretty bad to me. 1/3 for 3 mana is pretty awful, there are not even a lot of 2 drops it can block without dying, or even trade with. And just about everything that costs 3 or more mana runs it over. 3 life is not enough to redeem that
It was a lot stronger before M10. Same as Mogg Fanatic and other sack to do something cards.
LD doesnt work in pauper, though some exceptions for the LD that has useful riders like the 3R one that also prevents blocking.
Also it's feelbads to get sinkholed on the draw or lose a karoo or something. It's a fast format so LD is worthless after turn 4 anyway.