When your opponent has no cards remaining in his or her deck, this unit gets Armor.
This unit gets +10 speed, +1 power and + 1 health for each 15 cards in your opponent's discard pile.
Keywords
Armor
Armor: An isolated, static ability that means, "This unit can only be hit on a roll of 5 or more." Armor works against dice of damage and attack dice. It redefines what die roll is required to hit a unit. It doesn’t modify the die roll like Accuracy. A unit with Accuracy 1 attacking a unit with Armor hits with 4's, 5's, and 6's.