Beam and Cascade blast shapes are missing the [shape] tag that all other shapes seem to have.

May I suggest altering Cascade slightly? At present, it has an ugly exception of being usable with 0 ranks. Instead, have the first rank cost 0 motes, and just remove the extra +1 from everywhere that uses its ranks (number of targets). This also lets you list it up top above the 1m shapes so that the true 0m base cost is visible and obvious for low level evokers.
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Cascade [Champion, Empath, Stargazer]
[Mote Cost: 0m + 3m/rank beyond the first]
A single blast of power is the calling card of many magical girls. Brutal, overpowering... and incredibly inelegant. For situations calling for a measured hand and precise aim, it is common for magical girls to configure a barrage of lesser blasts, annihilating enemy forces with the precision of a laser blade. The illumination targets up to one creature per rank in the Cascade component within a 60' base range with a ranged touch attack. The evoker makes only a single attack roll, comparing it to the touch AC of each of her targets.


For Bomb, how do the explosions actually result? Bursts are normally centered on a corner of a space, but the bombs themselves are fully inside a space. Additionally, since each explosion seems to function separately, this appears to be an excessive damage multiplier. Against a creature moving in only 2 dimensions, it takes only 8 bomb bundles (4 for large and larger creatures), less if it's up against a wall or in a narrow corridor, ensuring that the damage is taken at least once, or multiple times if it doesn't take a move action (potentially provoking an AoO and certainly preventing a full attack) to move away and not take the hit of multiple explosions when they detonate.

On a related note, I am reminded of those dastardly caltrops catapult shots in Act 5 of Diablo 2. Lovely.