Each playmat is made with a soft fabric top to reduce damage to cards, and the non-slip rubber backing keeps the playmat from shifting during use
It doesnt have the tempo loss of many land destruction spells and effects
The short answer is nothing

I mean, that definitely isnt the case, but its still possible that one or two of these cards will show up in the set once the dust settles: Mox Opal Scalding Tarn Horizon Canopy Dark Confidant Verdant Catacombs Arcbound Ravager Leyline of the Void Blackcleave Cliffs Misty Rainforest Liliana, the Last Hope Chalice of the Void Ensnaring Bridge Marsh Flats Arid Mesa Aether Vial Damnation Trinisphere Surgical Extraction Leyline of Sanctity Bloodstained Mire Cryptic Command Wooded Foothills Bridge from Below Goblin Guide Kolaghans Command Ulamog, the Ceaseless Hunger Vendilion Clique Amulet of Vigor Azusa, Lost but Seeking Tezzeret, Agent of Bolas All is Dust Blood Moon Polluted Delta Collected Company Flooded Strand Inkmoth Nexus Walking Ballista Steel Overseer Collective Brutality Phantasmal Image Thoughtseize Thrun, the Last Troll Copperline Gorge Bloodghast Keep in mind that this is just a list of the most expensive cards that actually see some play in Modern that arent in Ultimate Masters

On top of this Point Update, many other cards have been catching my eye this past week due to inclusions for tops, so lets dive in and see what has been going on