-Bioshift is an all-star in my Vorel deck.

-Kavu Predator works well against life-gain decks

-Kalonian Hydra more counter doubling

-Hooded Hydra is another Chasm Skulker

Vorel was really fun to make there were so many interesting options for counter manipulation. My decklist is Vorel: Exponential Growth where it matters most.

Thank you Holtzman for your suggestions.

A little note about this deck.
I created this EDH within a counter theme, with a great notion of fun and casual plays. (For example I play no tutor at all, exception for Tezz.) But it seems it is very annoying to my opponents. They don't like playing against it. I don't know why.

Last changes (Kaladesh) :

Give / Take --> Animation Module

Champion of Lambholt --> Bloodspore Thrinax

Spore Flower --> Mycoloth

I'm trying to fit more to the "d6" theme, will soon do major changes.

Meanwhile:

• Bloodspore Thrinax → Den Protector: I just realized that Den Protector fits the d6-theme because she can get a counter from its megamorph ability. Recursion is always welcomed. Den Protector is replacing one of my weakest creature. The Thrinax needs to eat at least one other creature to start (and more than 2 or 3 creatures to be interesting), and it needs another creature to enters the battlefield to do something. That's too conditional.