(2009-10-01) The controller of the spell that caused Glimmervoid Basin's first ability to trigger also controls all the copies
If that 5 power Shimmer Dragon has Fireshrieker attached to give it double-strike and a Blackblade Reforged attached to give it +1/+1 for each land you control, there's a good chance someone's going to be dealt lethal commander damage
My favorite Squirrel enhancers in white, however, are 1) Equal Treatment, which not only acts as defense but also can double the damage of an assaulting Squirrel attack, and 2) March of Souls, which neuters more impressive opposing creatures while actually improving your own little dudes by giving them flying
Often, while building up to that strong board position, a few creatures will end up on the other side of the table
Just like the original, it enters the battlefield with a chosen player tied to it, and every bit of damage it takes is reflected right back at that player