Wrathful Cavalier

Soulbond, Haste, Double Strike & Horsemanship
(This creature can only be dealt combat damage by creatures with Reach, Flying or Defender)
As long as this creature is paired with another both
have, "Whenever this creature deals damage to an
opponent, both players Clash" (Each clashing player
rolls a D20. The player with the highest value wins)
Clash- If you win put a card from your graveyard
into hand, if you lose your opponent does.