I could make it a Pendulum... But, its Level (which goes with their Leveling motif) would get in way since Igknight's naturally scaling is 2-7. I , however, am not worried about that since Igknight could readily search another copy of this by destroying their scales , thus providing the proper fuel for its summoning conditions once again.
Okay... I have an idea: so what if I made it omni-negation, but at the cost of destroying a card you control with the corresponding card type (monster, spell, trap), similar to Arcana_Knight_Joker. That way you usually have a little range of what you can negate, being Monsters and Spells usually... Since Pendulum Cards could be used as a Monster or Spell. Traps would be unlikely to negate so this would be vulnerable to stuff like Infinite Impermanence.