mtg card ability rules Original Spin Magic: Standard Cheat Sheet by

It means a player is not in direct physical contact with at least one card in his or her hand of cards

Is Channel Lightning Valley legal to play

Grozoth only grabs other 9-mana cards out of your library, whether you use its enters ability or its transmute ability

What a very good bear indeed

You may exile a nonland card from it until Deep-Cavern Bat leaves the battlefield

Relic is of course the most powerful, and thats why it sees the most play, but being forced to keep up a mana every turn negates much of the tempo you gain from exiling the graveyards, so I would caution you against choosing it as your default without a second thought