Not only can it not be countered, but it only costs two mana, and it gives Ward - Pay Two Life to all of your creatures
Oh yeah, and don't forget that Battle Menu can always make a 2/2 Knight token
An immediate all-timer on release and my pick for the best angel in Magic, this is one of the most powerful expensive creatures in the game
(12/8/2022) If you choose to draw two cards, then replace one or more of those draws with some other effect, the rest of Sylvan Library's ability still happens
Lyle does have a high ink cost of 8 but grants 3 Lore points when questing and has stats of 6 Strength and 4 Willpower, so he's a very valuable card
since it turns everything into Pack Rats and theres nothing better to do than making a Pack Rat every turn, it doesnt matter how bad the rest of your deck is