Isshin, Two Heavens as One's ability affects only triggered abilities with conditions that are directly related to attacking, such as "whenever [this creature] attacks" or "whenever you attack with one or more creatures." It does not affect triggered abilities with other trigger conditions, such as "whenever [this creature] becomes tapped." Isshin's effect doesn't copy the triggered ability
If you are relatively new, or are just ripping open booster packs for the first time, you may want to cover all of the rarities of the cards first
Arthur - King Victorious has the power to buff other characters with the Knighted by the King ability , which gives them Challenger +2, Resist +2, and allows them to challenge ready characters during that turn
This is a two-player game for ages 8+
All that said, its a good thing that Rule Zero exists, to solve this problem even if Wizards wont
Kefka's wide smile on the front face is scary as anything, contrasting nicely with his bright, clowny colors
