Gengar & Mimikyu-GX (TEU 53). Ditto Prism Star (LOT 154). Almighty evolution is still usable under horror house GX lock.
Here’s the ruling that it shouldn’t be able to work:
https://pokegym.net/community/index.php?threads/horror-house-gx-vs-abilities.191953/
Game starting
Game type: QUICKPLAY
Game format: Standard
Player A: bluebarracuda
Player B: GiacominOPazz
Coin flip result: TAILS
Player B will start.
Game setup complete
Between turns. TC: 1
Player B drew 1 card
Player B played Pokémon Fan Club.
Put Ditto Prism Star (LOT 154) to hand
Put Dedenne-GX (UNB 57) to hand
B has shuffled deck.
Attached a Darkness Energy to Greninja & Zoroark-GX.
Put Ditto Prism Star onto bench
Player B played Pokégear 3.0.
Put [Hapu (UNM 200)] to Hand
B has shuffled deck.
Dedenne-GX has used Dedechange
Darkness Energy (TEU 203) was discarded
Weavile-GX (UNM 132) was discarded
Darkness Energy (TEU 203) was discarded
Pokémon Fan Club (UPR 133) was discarded
Hapu (UNM 200) was discarded
Player B drew 6 card
Put Dedenne-GX onto bench
Player B played Pokémon Communication.
Put [Voltorb (CLS 47)] to deck
Got [Sneasel (UNM 131)] from deck
B has shuffled deck.
Put Sneasel onto bench
Player B played Pokégear 3.0.
Put [Pokémon Fan Club (UPR 133)] to Hand
B has shuffled deck.
Between turns. TC: 2
Player A drew 1 card
Player A played Energy Spinner.
Put [Psychic Energy (TEU 201), Psychic Energy (TEU 201), Psychic Energy (TEU 201)] to Hand
Player A played Acro Bike.
Put 1 card to Hand
Custom Catcher (LOT 231) was discarded
Attached a Psychic Energy to Gengar & Mimikyu-GX.
Player A played Peeking Red Card.
Gengar & Mimikyu-GX used Horror House GX
Between turns. TC: 3
Player B drew 1 card
Ditto Prism Star has used Almighty Evolution
Ditto Prism Star evolved into Electrode-GX
Between turns. TC: 4
Player A drew 1 card
Attached a Psychic Energy to Gengar & Mimikyu-GX.
Put Gengar & Mimikyu-GX onto bench
Electrode-GX’s ability is blocked.
Dedenne-GX’s ability is blocked.
Power Plant is now in play.
Player A played Surprise Box.
Put [Pokémon Communication (TEU 152)] to Hand
Gengar & Mimikyu-GX used Poltergeist
Greninja & Zoroark-GX resists PSYCHIC
Gengar & Mimikyu-GX did 180 damage to Greninja & Zoroark-GX
Between turns. TC: 5
Player B drew 1 card
Player B played Cherish Ball.
Put [Mega Sableye & Tyranitar-GX (UNM 126)] to Hand
B has shuffled deck.
Player B played Pokémon Communication.
Put [Mega Sableye & Tyranitar-GX (UNM 126)] to deck
Got [Marshadow (UNB 81)] from deck
B has shuffled deck.
Put Marshadow onto bench
Marshadow has used Resetting Hole
Power Plant (UNB 183) was discarded
Marshadow (UNB 81) was discarded
Player B played Hapu.
Put [Viridian Forest (TEU 156), Acro Bike (CLS 123)] to Hand
Mewtwo & Mew-GX (UNM 71) was discarded
Darkness Energy (TEU 203) was discarded
Pokémon Communication (TEU 152) was discarded
Viridian Forest (TEU 156) was discarded
Player B played Acro Bike.
Put 1 card to Hand
Viridian Forest (TEU 156) was discarded
Player B played Acro Bike.
Put 1 card to Hand
Darkness Energy (TEU 203) was discarded
Viridian Forest is now in play.
Used Viridian Forest effect
Sightseer (LOT 189) was discarded
Put [Darkness Energy (TEU 203)] to Hand
B has shuffled deck.
@developers