Knot the thread, but do not cut it
Since players start with 40 life instead of the typical 20 in Commander, the life loss from Sylvan Library doesnt hurt as much, so this two-mana enchantment essentially draws you two extra cards every single turn
Trigger firebending, earthbending, airbending and waterbending in a single turn, and he turns into Aang, Master of Elements
The Big, Bad Wolf shows up and eats one of the opponent's creatures, although, something smaller than himself (defined by having a smaller powernote that you could Giant Growth in response to the enters-the-battlefield effect to allow the Big, Bad Wolf to eat bigger creatures)
instead of just being artifacts, all equipment cards are actually artifact creatures instead
Flashfreeze gives you another option