Venser Wrexial Esper Control

1 Jwar Isle Refuge
3 Drown Catacombs
3 Doom Blade
1 Clone
3 Island
3 Sea Gate Oracle
1 Frost Titan
2 Swamp
3 Plains
1 Swamp
2 Venser, the Sojourner
1 Swamp
3 Condemn
3 Mana Leak
4 Preordain
1 Sun Titan
1 Wrexial, the Risen Deep
3 Day of Judgment
1 Evolving Wilds
3 Evolving Wilds
3 Celestial Colonnade
3 Jace, the Mind Sculptor
3 Glacial Fortress
1 Kozilek, Butcher of Truth
1 Grave Titan
4 Wall of Omens
2 Jace Beleren

This deck almost got me first at TOK but I timed out. I know I need Creeping Tarpit but they are bit too expensive now.
Any good advice will be appreciated.