I'm trying to build a deck around my 2 Karns. My plan is for mana acceleration and control (maybe?).
My Thoughts:
1)Use "Overgrown Battlement" and build the deck with mostly defenders, or
2)Use proliferate, for "Shrine"s and "Surge Node".

I don't necessarily have to have both mana acceleration and control together. I guess I just want to know the fastest way to play Karn.

What I would like to know is what ya'll think is faster for mana acceleration? Any card ideas?
Thanks!

you could try to play karn liberated in a mono green ramp deck.

It should be fast enough to have a chance vs aggro decks.

Sample Decklist:
3 Everflowing Chalice
2 Tumble Magnet
4 Joraga Treespeaker
1 Llanowar Elves
2 Oracle of Mul Daya
1 Overgrown Battlement
4 Primeval Titan
1 Terastodon
4 Summoning Trap
1 Emrakul, the Aeons Torn
2 Ulamog, the Infinite Gyre
2 Karn Liberated
4 Explore
2 Green Sun's Zenith
8 Forest
4 Eldrazi Temple
3 Khalni Garden
4 Misty Rainforest
2 Mystifying Maze
4 Tectonic Edge
1 Verdant Catacombs
1 Eye of Ugin

regards

Thanks. I have a some of those cards, so building from it should be easy.