The Raven, by Edgar Allen Poe

At the beginning of each players' upkeep, roll a
d20.
1-12: Target creature you control gains lifelink
until the beginning of your next turn.
13: Transform The Raven, by Edgar Allen Poe.
14-20: Create a token enchantment named
Madness with enchant creature and "Enchanted creature can't attack you".
And my soul from out that shadow that lies
floating on the floor, shall be lifted-