Two things to note: Not EVERYTHING before a semi-colon is a cost (though they're never effects, but just the same, declaring card names, etc. isn't a cost), just stuff you do upon activation. And second, this wording scheme only applies to activation costs. MAINTENANCE costs don't use a semi-colon. (Spiritual Energy Settle Machine won't trigger Dark Worlds for example.)
I wonder if this card works with Goblin Circus to recover some banished monsters that are facedown?