
WardWardWhen this becomes the target of a spell or ability an opponent controls, counter it unless that player pays the ward cost.
If it's neither day nor night, it becomes day as this creature enters.
Whenever day becomes night or night becomes day, look at the top four cards of your library. You may reveal a creature card with mana valuemana valueThe total amount of mana in a card's cost, ignoring colour. A card costing has mana value 4. X counts as 0 except on the stack. 3 or less from among them and put it into your hand. Put the rest on the bottom of your library in any order.
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.