Arcane Lance
swordmage attack 1
Special: When charging, you can use this power in place of a melee basic attack. Add your Intelligence modifier to the damage if you charge while mounted.
Target: one creature
Attack: Intelligence vs. Reflex
Hit: "1d8 thunder damage, and the target is slowed until the end of your next turn.
Level 21: 2d8 thunder damage."[Dr405:page 6]
Arcane lance is an at-will power available to swordmages at 1st level.
Arcane lance was introduced in "Nerathi Legends: The Knights of Rethmil" by Richard Baker in Dragon issue #405.