Now, I could try to explain in my own words what that means or how they work within the rules, but that has proven dangerous in the last few weeks (did I mention that when you use a splice ability the card remains in your hand?), so instead I will refer you to the Champions of Kamigawa FAQ: Flip Cards The Champions of Kamigawa set contains ten "heroes" that are easily recognizable by their unique card frame: Akki Lavarunner -- Tok-Tok Volcano Born Budoka Gardener --Dokai, Weaver of Life Bushi Tenderfoot --Kenzo the Hardhearted Initiate of Blood --Goka the Unjust Jushi Apprentice --Tomoya the Revealer Kitsune Mystic --Autumn-Tail, Kitsune Sage Nezumi Graverobber --Nighteyes the Desecrator Nezumi Shortfang --Stabwhisker the Odious Orochi Eggwatcher --Shidako, Broodmistress Student of Elements --Tobita, Master of Winds You ignore the information on the bottom half of the card until the creature in play "flips" when certain heroic conditions are met

This helps imply the sense of riders, but in a way that's different from the Mirage returns to the Tempest takes a different approach
The one difference, and the separate coloring schemes make it patently clear, is that they belong to separate categories
Storm Emeralda Set Starring Mega Rayquaza ex Officially Revealed, Introduces a Split Stadium Card
Week 1 Ikoria frequently had players on 14 to 15 lands, but this eventually gave way to the 12-land minimum you see here
Sure, you get 10 ETBs, but for Trainers doing the math at home, that places individual ETBs just over $176 - more than triple their retail value just months after launch