Bursting shot: Fires an explosion of bolts at all enemies in front of you, knocking them back, disorienting them for 4 sec, and dealing 40% Physical damage
Explosive Trap: Hurls a fire trap to the target location that explodes when an enemy approaches, causing (420% of Attack power) Fire damage and burning all enemies within 8 yards for (420% of Attack power) additional Fire damage over 10 sec. Trap will exist for 1 min.
Explosive Shot: Fires a slow-moving munition directly forward. Activating this ability a second time detonates the Shot, dealing up to (1000% of Attack power) Fire damage to all enemies within 8 yds, damage based on proximity.
So one fires a bunch of bolts at enemies, the other is a trap which is more of a land mine, and the other is a rocket.