There are limits: You can only evolve each Pokmon once per turn (so no going from a basic to a stage 3 in one turn)
You wont always get something super powerful, but youre still disrupting the other players game plans which can help you just as much
It ramps DON
Brisela, Voice of Nightmares is made when Gisela, the Broken Blade and Bruna, the Fading Light are just on the battlefield together, while Hanweir, the Writhing Township is made through an activated ability that melds Hanweir Battlements and Hanweir Garrison together
One possibility is to cast Apocalypse, a card that gets rid of everything, including your hand, leaving you only with Barren Glory, but that needs to be done on your upkeep, so there are options like Leyline of Anticipation or Emergence Zone to give these spells flash
If Al Bhed Salvagers dies at the same time as one or more other creatures and/or artifacts you control, its ability will trigger once for each of those permanents, including itself