25 Jan 2019
Kaya's last ability causes you to gain life equal to the number of cards the target player owns in exile, even if an effect causes her to deal more or less than that amount of damage to that player.
25 Jan 2019
If a permanent has {X} in its mana cost, X is considered to be 0.
25 Jan 2019
Tokens that aren't a copy of something else don't have a mana cost. Anything without a mana cost normally has a mana value of 0.