Temur is pretty good at value
Big V definitely has the potential to be a fun and powerful deck
As for the Pokemon TCG Pocket trade feature, the announcement confirmed only Genetic Apex and Mythical Island expansion cards will be available to swap

Advent of the Wurm Ajani, Valiant Protector Arahbo, Roar of the World Archon of Valor's Reach Armada Wurm Armadillo Cloak Autochthon Wurm Banquet Guests Bast, Panther Goddess Behemoth Sledge Botanical Brawler Brightglass Gearhulk Burnished Dunestomper Burrowguard Mentor Cadira, Caller of the Small Ceremonial Groundbreaker Conclave Guildmage Danitha, New Benalia's Light Drizzt Do'Urden Dyadrine, Synthesis Amalgam Earth King's Lieutenant Elderwood Scion Engineered Might Gabriel Angelfire Ghalta and Mavren Nature's Blessing Okoye, Mighty and Adored Park Heights Pegasus Phantom Nishoba Sabertooth Nishoba Selesnya Charm Sergeant John Benton Sigarda, Champion of Light Sigardian Paladin Syr Armont, the Redeemer The Sensational She-Hulk Thoughtweft Lieutenant Tolsimir, Midnight's Light Treebeard, Gracious Host Trostani's Summoner Unflinching Courage Veteran Warleader Wakka, Devoted Guardian Woodvine Elemental Yuna, Hope of Spira

In that case, the Battle Damage inflicted to your opponent by each of those cards becomes 400 points
This card is a staple across multiple formats, acting like a finisher when it hits the field for any deck that goes wide enough