Sure planeswalkers are good answers but are they strong enough? Elspeth makes a chump blocker and Tamiyo locks a permanent .. but usually they have more creatures. It slows them up but is it enough?
I'm not looking for anything with the power of (for example) Jace, TMS but do we have direct and effective choices?
I'm testing at this moment
Geist of Saint Traft and
Mirran Crusader and the only problem I found is actually being able to flee from the wastelands and still be able to cast them with counterspells mana available. (btw, I run 5 Islands and 2 Plains).
Anti-graveyard stops Shaman but they're still very agressive....
Discard is anoying!
Leyline of Sancity? Maybe?
Sword of Feast and Famine?
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What about Jund?
Spell Snare has been fantastic for me!
Thoughts, both? :)