Explosive Red Lotus

At the end of each combat phase if a creature you controlled attacked you may pay x mana, if you do untap x creatures. Gain an extra combat phase.
You may initiate combat during other combat
phases.
Once each turn you may destroy a target
permanent, if you do you must attack that
permanents controller during your next combat
phase.
You may choose to have an opponents creature
fight another opponents creature once per turn.