Minsc is capable of putting counters on Boo, or any other creature with trample or haste
I find the last ability to be the best, as you basically get a free construct each turn that just keeps on growing
But Planar Cleansing, a rare card that destroys pretty much everything, costs less than 50 cents
But this doesn't really matter in our deck because if we can get Draconic Destiny on a creatureland with Blossoming Tortoise on the battlefield, we should be able to win the game on the spot by making the creatureland infinitely powerful
Nerd Rage People complain about Universes Beyond, but how else are you going to get a Magic card named Nerd Rage
(Power Artifact, currently for sale) Another blue card barely made the list: Power Artifact