[quote=Tuco
- allowing more than one spell per turn in almost any circumstance (I think Action surge is the only real exception?)
[/quote]
The metamagic Twin is broken for those reasons.
According to the rules I can twin Haste, casting two leveled spells in one round, doubling the output of two martials, while concentrating on the 2 spells simultaneously.
I can twin Disintegrate and do 50-100 damage on two targets.
The metamagic twin is broken even with strictly applied D&D rules.
