Hand it out too early, and an opponent might play a big creature like Terastodon that destroys your enchantment before you get a chance to use it
If you snap a twig, you might earn the ire of the arboreal Commanders
If Szarel leaves the battlefield before its last ability resolves, use its power as it last existed on the battlefield to determine how many +1/+1 counters to put on the target creature
At first glance, this might just seem like the unnecessary introduction of an ability word
The Hoof-Daddy is big and scary, and lets be honest, this is really the card designers' mistake, isnt it
However, running this card in your deck leaves you with the possibility of drawing it early on and having a dead card in your hand until you can muster up the mana needed