An arcane wall of force materializes at your command.
4e Power Usage::Encounter Arcane, Conjuration, Force, Implement
4e Power Action Type::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 4e Sustain Action Type::Minor: The wall persists.