If you reveal a split card with three or more colored symbols like Cut//Ribbons, Hit//Run, you can add three mana of that card's colors.
What is the actual behaviour of the card?
If you reveal a split card like that, you cannot choose any colors of mana. You then lose the game because your timer runs out.
This also happens if someone has Mycosynth Lattice in play, you should be able to reveal the card and then add 0 mana because you cannot choose any color, not lose the game.
What is the expected behaviour of the card?
What is the actual behaviour of the card?
Support Forum Thread
Forum Post: https://forums.mtgo.com/index.php?threads/omnath-locus-of-all-softlocks-you-if-you-reveal-a-split-card-or-if-mycosynth-lattice-is-in-play.1462/
Screenshot Cut // Ribbons:
Hit // Run (singleplayer test):
Mycosynth Lattice (singleplayer test):
Please provide a list of affected cards Affects: [Omnath, Locus of All]
Card Images