If you are going to mention Iron Heart surge than the manipulate form ability of the Sarruhk definitely needs to be included in this thread, as it basically gives whoever has it infinite power, such as pun-pun.
[spoiler]At will, a sarrukh can modify the form of any Scaled One native to Toril, except for aquatic and undead creatures. With a successful touch attack, it can cause one alteration of its choice in the target creature's body. The target falls unconscious for 2d4 rounds due to the shock of changing form. A successful DC 22 Fortitude save negates both the change and the unconsciousness. Sarrukh are immune to this effect.
A sarrukh may use this ability to change a minor aspect of the target creature, such as the shape of its head or the color of its scales. It may also choose to make a much more significant alteration, such as converting limbs into tentacles, changing the overall body shape (snake to humanoid, for example), or adding or removing an appendage. Any ability score may be decreased to a minimum of 1 or increased to a maximum equal to the sarrukh's corresponding score. A sarrukh may also grant the target an extraordinary, supernatural, or spell-like ability or remove one from it.
The change bestowed takes effect immediately and is permanent. Furthermore, the alterations are automatically passed on to all the creature's offspring when it breeds with another of its unmodified kind.[/spoiler]