Wall of Force (4e Power)

Wall of Force	Warmage Attack 17
An arcane wall of force materializes at your command.
Encounter  Arcane, Conjuration, Force, Implement
Standard Action	Area wall 10 within 10 squares
Effect: You conjure a wall that consists of contiguous squares filled with arcane force. It can be up to 8 squares long and up to 4 squares high. The wall lasts until the end of your next turn. Any creature that starts its turn adjacent to the wall takes 2d6 + Intelligence modifier force damage and is pushed an amount of squares equal to your Wisdom modifier (save prevents push). If a creature moves into the wall’s space or starts its turn there, the creature takes 4d6 + Intelligence modifier force damage and is pushed an amount of squares equal to your Wisdom modifier (save prevents push). Entering a square occupied by the wall costs 3 extra squares of movement. The wall blocks line of sight.
Sustain Minor: The wall persists.