Taysir, One Made of Five

+2: Choose a color. Create a 3/3 human creature token of the chosen color named Taysir. Draw a card.
+1: Until your next turn Taysir becomes a 3/3 human wizard with haste and "Tap this permanent to add one mana of each colored spent to cast Taysir.
-15: Sacrifice five Taysirs of different colors, create a 7/7 indestructible human wizard named Taysir, the One. Exile all other permanents.