Of the two-color lands that are a prominent feature of Magic Duels, I think my favorite is Highland Lake, by Florian de Gesincourt
Given that Cogsworth Grandfather Clock also has Ward, which prevents it from being targeted, its possible to get Cogsworth Grandfather Clock out early and keep him play for a while to give your other cards a powerful buff
A 3/4 with double strike that becomes hexproof whenever it attacks can also close games quickly - expect to see plenty of The Wandering Rescuer if there are enough small White creatures to build around
Also, this card is able to transform into a Gruul-colored Blightsteel Colossus on its flipside as long as you pay 10 mana or nine mana and two life, so that might act as the trump card Etali, Primal Storm is stuck as a six-mana 6/6 with no keywords
SP Cards Leader Parallel Art Been busy opening cases this 2 days heres the configuration for a case of OP-05: 1 Case 12 Boxes 4 Boxes with SEC (2 Luffy 2 Kaido) 2 Boxes with Leaders (Random from the 6) 1 Box with SP card (Random from the 6) 80% chance to get 1 Box with Anniversary Card ( Without signature) Anniversary Card ( with signature) is a bonus pull, can appear randomly similar to Manga card
Not only that, but Gruul has access to powerful support cards that let you give creatures haste and trample to really deal massive damage