Map to Lorthos's Temple (MB2) (295)

Whenever you complete one of the following objectives, check it off. If all three are checked off, sacrifice Map to Lorthos's Temple. If you do, create a Lorthos, the Tidemaker token.
☐ Diving Gear - An artifact enters the battlefield under your control.
☐ Merfolk - A Merfolk enters the battlefield under your control.
☐ Ritual - You cast an instant or sorcery spell.