Combos Utilizing Koskun-Falls

tap thrull tokens generated by breeding pit to make opponent pay 2 colorless per attacking creature.

when viashino bey attacks,all yor creatures will attack making koskun falls effect not apply to you.

play nether spirit, and koskun falls. then play the contamination. every turn, you can tap the nether spirit to the falls, then sac it to the contam. use rapid decay to get other creat. out of ur grav

if they dont have enouph mana,some of there creatures will die.

have both in play. during your upkeep, tap an untap creature you control. now opponent must pay 4 mana per attacking creature instead on only 2 mana