So perhaps there's a mix of reasons: WotC wants to address player fatigue, decides to make less precons, WotC also wants to nudge new players into Standard rather than Commander, Between new and returning players, UB sets have more traction among returning players , who are less likely to need a precon to jump back into the fray
The former is also evasive, helping us to trigger Olivia
WotC found that having creatures with this effect led to unfun play patterns in Limited, and generally werent played in Constructed
10 Latias ex: Surging Sparks (Special Illustration Rare) $249.13 The Sky's The Limit Surging Sparks opened up the floodgates to another level of hype in the Pokemon, as some of the most expensive cards in the set debuted at sky-high prices
However, Vikavolt V's power comes from its Paralyzing Bolt attack