Magery
Theme
Promise of Loyalty
4W
Sorcery
Each player puts a vow counter on a creature they control and sacrifices the rest. Each of those creatures can't attack you or planeswalkers you control for as long as it has a vow counter on it.
Prices
EUR Nonfoil
$0.24
TIX Nonfoil
$0.57
USD Nonfoil
$0.26