Jund's challenge

Start with this card in the challenge zone. At beginning of your upkeep put an age counter on it an roll a dice:
1/2 - Destroy a permenent you control
3/4 - Puts a X/X creature into the challenge zone with trample, being X the number of age counters on Jund's Challenge
4/6 - Put a creature from your graveyard into the challenge zone.