Sinistcha

Sinistcha enters via Hospitality to immediately restore HP to its partner on switch-in, keeping Mega Eelektross healthy enough to absorb a second hit and continue accumulating Eelevate boosts. Sassy nature with 32 HP and 30 SpD and Sitrus Berry gives maximum staying power under special pressure, and the low Speed stat means Sinistcha moves last naturally, making Trick Room a reliable reversal tool when facing faster opposing setups. Rage Powder redirects attacks away from Eelektross and allies, while Matcha Gotcha and Life Dew provide sustained healing across multiple turns. Sinistcha's Ghost typing also lets it block Normal-type priority moves from threats like Kangaskhan.