Fantastic! I also got a few new ideas if you're interested:
Rune of Brutality- Gib opponents for 5 seconds of quad damage. Very useful when quad is activated. Chances of Gibbing enemies without quad are slightly increased as well
Rune of Humiliation- Enemy suicides, lava deaths, etc. will count as a frag towards you when this rune is held. Opponents feel as though they are slipping on ice when walking near you to raise chances of an accidental lava bath.
Demolitions Expert- Increased explosive blast radius, gives some rockets upon pick up, can also use to set proximity mines that cause a big boom when detonated
Rune of Redemption- Summons a surprise Fiend against the player that killed you, activates upon death like Phoenix
Rune of Friendship- An invincible Scrag is always floating by your side when this rune is held. His rate of fire is very high and does more damage than a regular Scrag