So i did a second test to determine if Intelligence is correctly boosting a pet's spell damage. I used the same WW and Serpentine Dragon as before, with a 588 INT difference between the two. The WW was doing 61-67 damage an E-Bolt and 78-84 damage a Flame Strike to a 0 Resists Drone. The Serpentine Dragon was doing 67-75 damage an E-Bolt and 75-93 damage a Flame Strike to a 0 Resists Drone. Mind you, this is against a 0 Resists target, so against a high Resists target the difference in damage will be much smaller, to the point of being negligible at 60+ Resists. So INT does appear to be slightly increasing the spell damage of pets now, but nowhere near as much as i thought it would.
Crushing Blow actually appears to be doing less damage than a normal melee attack does.
Skrees are casting Protection and Magic Reflection. The Stygian Drake casts Magic Reflection as well. Magic Reflection alters their Resists with -20/+10/+10/+10/+10.
Strength/Agility/Cunning/Weaken/Clumsy/Feeblemind/Bless/Curse no longer seem to affect the derived stats (Health/Stam/Mana) of a creature, just the primary stats (STR/DEX/INT). This means no more 165+ DEX/Stam Rune Beetles hitting the 180+ Stam breakpoint after a Bless
Sounds like you went through the Training Gate again after your pet had already hit 5 slots. That gives you an extra 5k Training Points that you otherwise wouldn't be able to get.