A Metamagic Feat to Replace the Words of Power System

[Epic Meepo]

I made this feat to replace the entire Words of Power system.
Now I could use your help finding creative ways to break it. Any suggestions?

WORDSPELL (Metamagic)

By focusing your mind on unspoken words of power, you can combine multiple spells into one.

Benefit: You can combine two or three different spells into into a single wordspell. Choose the order in which the combined spells resolve at the time this effect is applied to those spells.

A wordspell uses the longest casting time of any of its combined spells and requires all of the components of each of those spells. While it is being cast, a wordspell counts as a single spell of the universal school of magic. It can counter and be countered by any of the spells that it combines. Once the wordspell is successfully cast, make all choices required by each of its combined spells. The combined spells then resolve in order, each of them counting as an independent effect belonging to that spell's normal school of magic.

Each combined spell counts as a spell of the same level as the highest-level spell combined in the same wordspell. The DC of any saving throw it requires is calculated accordingly. Each combined spell that normally has a range of touch has a close range (25 ft. + 2 ft./2 levels) instead. Any caster level check or concentration required by a wordspell or combined spell uses your normal caster level. For all other purposes, your effective caster level for spells combined by a given wordspell equals your actual caster level divided by the number of spells that wordspell combines.

When you cast a wordspell, choose a point in space within line of sight and line of effect. Each combined spell that has an area or effect with a radius fails unless its area or effect is centered on that point. Each combined spell with a single target fails unless its target's space includes the chosen point. All creatures, objects, and spaces more than 20 feet from the chosen point count as being outside the range of each combined spell, regardless of that spell's range, area, effect, or targets. Creatures, objects, and spaces within 20 feet of the chosen point are not automatically in range.

Whenever a creature or object successfully makes any saving throw required by one combined spell, it automatically succeeds on the first saving throw required by each other spell combined in the same wordspell that resolves thereafter. If more than one of spell combined in a wordspell allows spell resistance, make only one caster level check to overcome the spell resistance of any affected creature or object, using the results of that same check for each of those spells.

A wordspell that combines two spells uses up a single spell slot two levels higher than the highest-level combined spell. A wordspell that combines three spells uses up a single spell slot three levels higher than the highest-level combined spell.

Special: You can apply the effects of this feat to spells that are being cast spontaneously without increasing their casting time above that of the combined spell with the longest casting time.