Amass Oozes X, where X is number of creature types among creatures on the battlefield. Don't count changelings. That would be ridiculous. (To amass Oozes X, put X + 1/+ 1 counters on an Army you control. It's also an Ooze. If you don't control an Army, create a 0/0 black Ooze Army creature token first.)
![You and Ooze Army? [Unknown Event] MTG Single Magic: The Gathering | Multizone: Comics And Games](http://multizone.ca/cdn/shop/files/mtg_placeholder_a6f79178-8c74-4981-a04e-d8d6fd4b0fba.png?v=1777316868)
