Jacob, The Thinker

Flying, Lifelink, Deathtouch
While Jacob, The Thinker is on the battlefield, players must pay {2} to attack any friendly creature.
Contemplate{3}{b}: Become Indestructible for 1 turn, gain +2/+2 and scry 1.
Discuss{3}{b}{b}: Tap all creatures, all players draw 2 cards.
Rebuttal{3}{b}{r}: Destroy target tapped creature.