Seasonal Tournament

Creatures with Knight counters gain the Knight subtype and have vigilance.
{w/b}{w/b}: Starting with you, each player may tap any number of creatures. Repeat this process until all players choose not to tap any more creatures.
The player who tapped the creatures wtih the
most combined power exerts those creatures.
Then they place one Knight counter on up to
two of those creatures. Activate this ability only
once per turn.