Kurdahn, Mad War-Chief

Whenever an Orc spell is played, Kurdahn,
Mad War-Chief gains three +1/+1 counters.
Orc spells cannot be countered.
War-Chief (Creatures with War-Chief Challenge
other creatures with War-Chief on your side of the
battlefield. The creature with the greater power and/or
toughness kills the other and gains the abilities and power
and toughness of the other War-Chief)