Even if you have enough bodies when you leave your turn, they might die to removal and such
I love having incidental value on lands as a way to use extra mana more efficiently and this card delivers just that
On turn 6, you wont have any more counters to remove and will have to exile Parallax Tide and your opponent will get all their lands back
They also brought a lot of protection and removal auras like Darksteel Mutation and Gift of Immortality
While on the surface it looks like she has infinite possibilites -- you can tutor for ANYTHING -- in practice, all Prime Speaker decks are going to end up the same, tutoring for the best creature target and following the same lines of play so you can combo off the same way each game
Pack your mass pumps and be sure you spit some squirrels onto the battlefield early with cards like Scurry of Squirrels, Chatterstorm, Chatter of the Squirrel, and even Frog-Squirrels