Forum:Ultimate offering

so, let's see, with ultimate offering i would have to pay 500 LP to be able to normal summon another monster, right? even if the monster needs a tribute? such as a dark magician [yeah, im a huge fan of that card, no matter what.] and with cry havoc i'd need to remove one monster from play to normal summon one monster, one normal monster, such as... a dark magician? is it possible?