The Zendikar Expeditions, Amonkhet Invocations, and Kaladesh Inventions are all Masterpiece sets
Selesnya Offense (17.7% of the Winner's Metagame) 6 Forest 4 Llanowar Elves 4 Pawpatch Recruit 4 Hushwood Verge 4 Temple Garden 4 Practiced Offense 4 Badgermole Cub 4 Leatherhead, Swamp Stalker 4 Brightglass Gearhulk 3 Abandoned Air Temple 3 Surrak, Elusive Hunter 3 Spider Manifestation 2 Ouroboroid 2 Plains 2 Seam Rip 2 Multiversal Passage 2 Jennifer Walters 1 Meltstrider's Resolve 1 Ba Sing Se 1 Bushwhack 3 Sheltered by Ghosts 3 Rest in Peace 3 Dawn's Truce 2 Erode 2 Elspeth, Storm Slayer 1 Meltstrider's Resolve 1 Soul-Guide Lantern Selesnya Offense is an aggressive strategy that uses Practiced Offense to transform a wide board of creatures into a devastating attack
The table below includes all six cards, along with what they can do
You'll usually get a counter of this the turn it comes down, and it will start to snowball as you buff creatures and make them into Mutants
Besides Olaf, there are other happy snowmen who, while not as detailed as the lovable sidekick, still wear wide smiles as they seem to jump and fall through the air that surrounds Olaf like they're all joining in snowman games