621 - Raven

Once each turn or when 621 enters the battlefield, choose one that hasn’t been chosen since your last choice:
• 621's power becomes 3 and gains deathouch
• 621's power becomes 6 and gains vigiliance
• 621's power becomes 9 and whenever it attacks it gets a stun counter
Once each turn or when 621 enters the battlefield, choose one that hasn’t been chosen since your last choice:
{bull} 621's toughness becomes 3 and gains flying
{bull} 621's toughness becomes 6 and gains trample
{bu