Ken the Warrior Dragon (AGOV-EN081) [Age of Overlord]

Once per turn, at the end of the Battle Phase: Return this card from the field to the hand. You can only use each of the following effects of "Ken the Warrior Dragon" once per turn. During your Main Phase: You can Special Summon 1 "Gen the Diamond Tiger" from your hand or Deck to your opponent's field in Defense Position. If this card is Special Summoned by the effect of "Gen the Diamond Tiger": Your opponent draws 2 cards, then they discard 1 card.