It can deal massive amounts of damage in one shot, clearing the board while also lopping off a chunk of each opponents life total
I have no fully confirmed truth about a lot of these things, only a "best bet", and every now and then some new info about pre-Alpha playtest cards comes out and turn things on its head
The Amber and Amethyst deck is probably the easiest to master, while the Ruby and Emerald deck is the trickiest of the three to understand, although its probably the most flexible and adaptable of the three decks
Roselia #14Common $0.12 Kyurem V #48Ultra Rare $0.77 Hisuian Basculin #44Common $0.07 Nuzleaf #12Uncommon $0.12 Swanna #47Uncommon $0.09 Ducklett #46Common $0.23 Vileplume #3Holo Rare $0.30 Poliwhirl #31Uncommon $0.20 Magnezone VSTAR #57Ultra Rare $1.06 Tynamo #59Common $0.13 Dark Porygon2 #8Holo Rare $88.44 Porygon2 #28Rare $13.65 Porygon2 #12Holo Rare $48.44 Porygon2 #12Holo Rare $22.45 Porygon2 #25Rare $3.27 Porygon2 #49Uncommon $2.71 Porygon2 #49Uncommon $0.70 Porygon2 #73Uncommon $0.41 Porygon2 #65Uncommon $0.10 Porygon2 #104Uncommon $0.17
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Tomer from MTGGoldfish recommends using powerful Proliferate spells like Rad Storm in combination with Nuclear Fallout to irradiate the battlefield to pieces