Rennala, Full Moon Queen

Instant and sorcery spells you cast cost {1} less
to cast.
Whenever you cast an instant or sorcery spell, Choose one —
•Create an X/X white giant creature token with trample, where X is that spell's mana value.
•Create an X/X red Dragon creature token with flying, where X is that spell's mana value.
•Create a 1/1 blue illusion creature token with
"when this creature dies, draw a card."