You can run more in the sideboard, but you dont need more than one to start with since its super situational and youll only likely ever need it once if at all in a game
Ditto starts at $30 for an HP copy, while MP cards typically jump to the $42 or $43 range
I love beating somebody down with a little 2/2 flier
The Theros gods are always creatures on the stack, regardless of your devotion, so Negate wont work there
If an artifact was discarded this way, Reckless Handling deals 2 damage to each opponent. This should obviously see play in a singleton format like Commander, especially when having artifacts in graveyards is something that interests your deck, but it could even see constructed play
Put 6 damage counters on each of your opponent's Pokmon