One of these precons, Tinker Time, was, unfortunately, a bit too ambitious and is regarded as one of the worst-built precons

Mewtwo Collection Battle Arena Decks: Mewtwo EX vs Darkrai EX Elite Trainer Box [Mewtwo X] Elite Trainer Box [Mewtwo Y] $990.00 BREAKthrough Pin Blisters [Mega Mewtwo] (Set of 2) BREAKthrough Three Pack Pin Blisters [Mega Mewtwo X] BREAKthrough Three Pack Pin Blisters [Mega Mewtwo Y] Mega Mewtwo Collection (Set of 2) Erika's Oddish (Energy Symbol Pattern) #1Common $0.23 Wurmple (Energy Symbol Pattern) #11Common $0.21 Chikorita (Friend Ball) #8Common $0.24 Grubbin (Energy Symbol Pattern) #17Common $0.24 Mega Meganium ex - 010/217 #10Double Rare $1.10 Bayleef (Energy Symbol Pattern) #9Uncommon $0.31 Erika's Victreebel (Poke Ball) #6Rare $0.27 Charmander #20Common $0.19 Beautifly - 013/217 #13Uncommon $0.10 Erika's Vileplume ex #3Double Rare $0.70 Armored Mewtwo - SM228 #SM228Promo $283.86 Cresselia - 87/236 (Mewtwo Stamped) #87Promo $0.22 Cynthia - 119/156 (Mewtwo Stamped) #119Promo $0.33 Eevee - 49/68 (Mewtwo Stamped) #49Promo $0.86 Espeon - 89/214 (Mewtwo Stamped) #89Promo $1.60 Hau - 120/149 (Mewtwo Stamped) #120Promo $0.14 M Mewtwo EX #43None $49.75 M Mewtwo ex - 028/059 #28Double Rare $80.00

Every mechanical theme requires some level of support, but artifacts seem to take a lot more than others
4) Probably the most useful part, I've added a plot to let the user assess if the group of uploaded decks seems balanced, in general
How Long Will Old Packs Be Available in Pokemon TCG Pocket
How to get gems: How to earn more of MTG Arena's digital currency