
(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)
When this Siege enters, put a +1/+1 counter on each creature you control.
WardWardWhenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .
(Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays
.)
At the beginning of your end step, put a +1/+1 counter on target creature you control.
Hover an underlined rule to see what it means.
Read from the rules text. A card that enables a keyword makes or is the thing; a card that rewards it gets better when you have it. Two cards interact when one enables what the other rewards.