U/G Tempo Titan - Comments?

Hey everyone,

My roommate and I have been doing some testing for an Anti-Wolf Run deck, and have discovered just how good Frost Titan is. He completely takes over games (much like most of the Titans), especially when you can drop him on turn 4, except he completely DOMINATES opposing big creatures.

It's been demolishing R/G Wolf-Run, the deck from worlds, and does pretty damn good against control. Aggro is a harder matchup, but Tree of Redemption/Creeping Corrosion beat up on tokens and Tempered Steel

What do you guys think? Hard counters are there to protect your dudes after you get up into ramp territory. Ponder smoothes out the late game REALLY well. Vapor Snag is so unbelievably good in this meta, especially when you can Snapcaster it back. Can anyone help with more sideboard cards?

Deck
Creatures 20: 4 Birds of Paradise 4 Snapcaster Mage 4 Solemn Simulacrum 4 Frost Titan 4 Primeval Titan

Sorceries 8: 4 Ponder 4 Rampant Growth

Instants 8: 4 Vapor Snag 4 Dissipate

Land 24: 4 Hinterland Harbor 2 Inkmoth Nexus 1 Kessig Wolf-Run 1 Mountain 9 Island 7 Forest

Sideboard: 4 Autumn's Veil 4 Creeping Corrosion 3 Tree of Redemption 4 ???