Altar of the Light Archon

: Whenever you cast an instant or sorcery spell, you may pay {1}. If you do, proliferate.
+2: The next creature you cast gains a number of +1/+1 counters equal to the number of instants and sorcery spells you've casted this turn.
-11: Create an emblem with "Whenever a creature you control gains a +1/+1 counter, it gains haste and double strike until the end of your turn."