Shape Fire

Area 
Control the shape of any flame. Each shape change requires a second of concentration. Once shaped, the flame keeps that shape until the spell expires, without concentration. Moving a flame requires constant concentration (the flame moves at Move 5, on the caster’s turn). A natural fire cannot move to a place that it can’t burn, but flame made with the Create Fire spell needs no fuel and can move almost anywhere. 
Flame shaped with this spell normally retains its volume. If the fire is “spread out” across twice its original area, it only does half damage; if spread across three times its original area, it does 1/3 damage; and so on.

Duration: 1 minute. 
Base cost: 2. Half that to maintain. 
Prerequisite: Ignite Fire.

Item 
Staff, wand, or jewelry.  
Energy cost to create: 400; item must include a ruby worth $300.