This planeswalker can exile itself, too, which can protect it from a threatening board of attackers
It's one of the most popular cards from the "Through the Ages" collection, so well worth keeping an eye on right now
If the creature you control does attack, and the creature you don't control can't block it for any reason (such as being tapped), then it doesn't block
Overall the card is worth more than that but just the -2/-2 mode is also obviously worse than most of the other cards on this list
For four mana, two of which have to be Blue or Green, you get to mill two cards and then you can return a nonland card of an opponents choice from your graveyard to your hand
The card incentivizes players to run as many copies of Cid as they can, so anyone who wants to build a Cid-centric deck needs dozens of Cids