alright I don't know much about pendulums but there's something i've been wondering, assume you had(we'll use performapal)performapal turn toad in your zone and you had stargazer and timegazer magician in your hand, can you replace turn toad with one of the gazers such as you would a field spell for another field spell and if so would turn toad be sent to the graveyard or the extra deck?
If anyone knows I would love to know ^ ^