The magnets hold the lid securely but do not expect it to stay closed if thrown
Team Rockets Hypnosis Device Tool If the Team Rockets Pokmon this card is attached to is in the Active Spot and is damaged by an opponents attack (even if it is Knocked Out), the Attacking Pokmon is now Asleep
Hakbal is also a source of ramp, considering every time he attacks, you can play out the lands you've expanded into
A great creature with Panharmonicon is Yarok, the Desecrated, a popular commander that functionally does the same thing but triggers every enter the battlefield of all permanents instead.
Technically a creature can have multiple instances of banding, but it's redundant
Not to mention, you get redeemable codes for Pokemon Pocket