Should a band grow too large for its territory to support, the apprentice takes a portion of the band away to form a new, affiliated band in a new territorythough in this post-invasion era, this is rarely a problem
Similarly, if you run a cascade commander like Maelstrom Wanderer, there are very few options for counterspells available
But theyre also not temporary so if you flash in One with the Kami and make the Spirits on the endstep before your turn, you should still be able to attack and win without giving any opponents a chance to untap
A Cycling Built For Two goes into greater detail if you want it
Even though Queen Brahne is likely to die in combat, it should be able to trade off with something in the process and leave you up one Wizard token, which is a pretty good deal
If you're wondering what they do, so do many of the other developers that have played against these cards