Name:Norn's Annex
ManaCost:3 PW PW
Types:Artifact
S:Mode$ CantAttackUnless | ValidCard$ Creature | Target$ You,Planeswalker.YouCtrl | Cost$ PW | Description$ Creatures can't attack you or a planeswalker you control unless their controller pays PW for each of those creatures.
SVar:Picture:http://www.wizards.com/global/images/magic/general/norns_annex.jpg
Oracle:({P/W} can be paid with either {W} or 2 life.)\nCreatures can't attack you or a planeswalker you control unless their controller pays {P/W} for each of those creatures.