Organogenetic Tribunal

Progenerate 2 {1}{w} (You may pay an additional {1}{w} as you cast this spell. if you do copy it twice. )
When Organogenetic Tribunal, enters the battlefield choose a card type.
Whenever an opponent casts a spell of the chosen
type, counter that spell unless its controller pays {1}. This ability triggers only once each turn.
Their rulings are always unanimous.