Rhystic Study

Extort (Whenever you cast a spell, you may pay W/B. If you do, each opponent loses 1 life and you gain that much life.) Artifacts and creatures your opponents control enter tapped.

Whenever you gain life, you may pay 2. If you do, draw a card. 3W: Create a 1/1 white Soldier creature token with lifelink.

When this enchantment enters, for each opponent, exile up to one target nonland permanent that player controls until this enchantment leaves the battlefield. (Those permanents return under their owners' control.)

Other enchantments you control have shroud. (A permanent with shroud can't be the target of spells or abilities.) Enchanted creatures you control have shroud.

At the beginning of your end step, if you gained 3 or more life this turn, create a 2/2 white Griffin creature token with flying.

Creature tokens you control get +1/+1 and have vigilance.

Whenever a spell or ability an opponent controls destroys a noncreature permanent you control, you may destroy target permanent that opponent controls.

Enchant creature When this Aura enters, create a 2/2 white Knight creature token with vigilance. (Attacking doesn't cause it to tap.) Enchanted creature gets +2/+2 and has vigilance.