Sure, it feels good to give your creature hexproof in response to removal, but there will be lots of times where that effect doesnt matter
Anchor to Reality feels fixed, honestly
Besides that, this excellent Mardu commanders a cheap body with haste that can start accumulating experience counters much quicker than its contemporaries
Casting Cost: (R} Card Type: Legendary Creature - Dragon Power / Toughness: 4 / 3 Card Text: Flying, haste Whenever Smaug attacks, he deals damage equal to the number of Treasures you control to any target
Any power- or toughness-setting effects that start to apply after Shadow Puppeteers's last ability resolves will overwrite this effect
However, the value is capped by the mana value and the low stats of this card