A voice booms across the solar system. A telepathic boom, only heard in the minds of those immensely powerful. Be that power of supreme arcane knowledge, granted from a godly entity, mastered with advanced technology, or merely titanesque biology. The telepathy bypasses even the strongest defenses, but it causes no harm.
"I offer you the Soul of Man! With it, any earthly desire is within reach." the boom says, "these needn't only be desires of conquest. You may rid the world of greed, gluttony, lust, or simply bring balance to nature." The boom changes to a goading tone "but others will surely want this as well. You'll have to fight for the Soul of Man!"
Any being of substantial strength innately understands the nature of this Item. The can consciously choose to accept this challenge, and know that they'll be transported to another plane, and lose no time on this timeline.
My Non-Canon Toons
Avatar by MikeNovember