Serra's Cathedral

Covenant -- Your starting deck has only white
and/or artifact cards. (If this card is your
chosen covenant, you may begin the game
with it on the battlefield.)
This card enters with 3 bond counters. At the
end of your upkeep remove a bond counter
from this card. While there are bond counters
on this card, you cannot lose the game.
If you paid the casting cost, you have hexproof.