Opening Unified Minds Premium Checklane Blister [Umbreon] returns about $24.14 in card value against its $149.99 price — roughly $0.16 back per dollar spent. On current prices, you lose money on average by opening it.
See every card and pull rate in SM - Unified Minds
How expected value is calculated — card value only, from published pull rates and daily market prices.
Unified Minds Premium Checklane Blister [Umbreon] on TCGplayer