The price spike seems to be fairly justified in this case: Living End decks are already putting the card to good use on MTGO leagues and, as noted, Violent Outburst was at around the current price when it was legal two years ago
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High Market, Phyrexian Tower, Grim Backwoods, and Miren, the Moaning Well are all reasonable choices
Adventures - Adventures return in this set
Set Number 364 Language Portugus Legal Formats Commander, Legacy, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Modern, Pauper, Pioneer, Standard, Timeless Rulings (6/10/2022) You may cast a spell from among the exiled cards only as Tasha's last loyalty ability resolves
The second will come when trading, when something looks a bit off you should immediately start to focus more and look for other issues