3 years late, but:
Tenacious Hunter- Grinbles spawn up to 4 in a given room, but you get +50% damage
Fractuous Arcanum- when you overcharge your magic condenser (use too much magic), some amount of your bits explode out of you and disappears after a few moment; but you get +25% magic bit drops from enemies and obstacles (it shouldn't affect other magic bit sources if I recall correctly)
Captive Magician- Blue moves like they're constantly on ice, but your magic recharges 50% faster. Or 25%, I don't remember this one