(Plus Merlin, Shapeshifter in his own human form.) Each of the shapeshifting Merlin cards offers a different boon when they first arrive on the table and when they leave, presenting the opportunity to combine them with cards that cycle them in and out of your hand to stack up the benefits
That, as it turns out, pretty much wins you the game most of the time
Howdy folks
6 Madam Mim - Elephant 44/204, Amethyst More than anything else, Madam Mim - Elephant is simply difficult to deal with
Simple yet incredibly effective, within the context of a hydra deck, as hydras are most often composed of +1/+1 counters, Branching Evolution can allow a player's creatures to enter the battlefield twice as large as they would otherwise.
And they cant block you when you activate the Immobilizer Eldrazi, and thats a huge way to mess up with combat math