EXPLODE!

Arcane Ammo Two Actions Cantrip 1

Arcane Cantrip
Target one willing ally’s weapon

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You fuel a weapons ammo with arcane power about to burst. Touch a weapon an ally is holding. The next shot from that weapon upon hitting the target explodes as a level 0 fragmentation grenade. It does not explode if it misses the target.
Heighten(level 2) The fragmentation grenade is level 2
Heighten(level 4) The fragmentation grenade is level 4
Heighten(level 6) The fragmentation grenade is level 10
Heighten(level 8) The fragmentation grenade is level 12

Thoughts?