What mage are you playing and what basic strategy are you hoping to implement? You're being so non-specific that I can't really answer you in any kind of detail.
The first thing that comes to mind is summon more mid sized creatures, but there may be other strong options. For example, a Steelclaw Pet is vulnerable to Daze/Stun lock, but 4 Timber Wolves aren't nearly as impressed by Daze/Stun lock plays. Angel of Light is immune, so a Priest/Priestess can respond with her.
Also, you don't necessarily need to kill ToL. If you want to destroy ToL, Ballistae will be a strong option for that once they come out. Right now, fire attacks are probably your best bet, although Dark Pact Slayers/Brogan can do a lot of damage with their high Piercing attacks.
As for Wall of Pikes, pull your opponent out of them. Then they'll have to Teleport or run back through them to get away from you.