Blazing Tower (3.5e Invocation)

Transform your fire bolt ability into an area of a cylinder with a 10 foot radius and 50 feet high. You can project this area of effect out to Close range (25 ft. + 5 ft./2 levels), dealing the normal fire bolt damage with a Reflex save for half, DC 10 + 1/2 HD + Charisma. In addition if they fail their save they are forced down 50 feet (if the attack falls from the sky), or thrown up 50 feet in the air (if the attack bursts out of the ground), taking falling damage as appropriate if they hit the ground, the cieling, or fall due to gravity. You can also cause a pillar to erupt from a vertical surface, in which case any creatures in the pillar's path must succeed on their Reflex saves or take normal firebolt damage and be knocked prone.