My favorites are Sandstorm Multi, Emeralds and Play Cyclone
Brand Brand is very meta dependent, but I myself run plenty of theft effects and outside of Homeward Path - please reprint Homeward Path, thank you - there isnt a whole lot you can do once your permanents arent yours anymore
Mach Delivery-GX You may discard any number of cards from your hand until you have 9 or fewer

ex 2 Litleo (Mega Evolutions #023) backup attacker or filler 1 Pyroar (Mega Evolutions #024) pairs with Litleo Trainers and Energy (43) 3 Firebreather (Phantasmal Flames #087) grab Fire energy 3 Dawn (Phantasmal Flames #086) evolution search 2 Heat Burner (Phantasmal Flames #089) utility removal 2 Jumbo Ice (Phantasmal Flames #090) healing support 2 Sacred Charm (Phantasmal Flames #092) tanking support 2 Battle Colosseum (Phantasmal Flames #085) protect bench 2 Dizzying Valley (Phantasmal Flames #093) disruption 2 Rare Candy (Mega Evolutions #125) evolve faster to Mega Charizard X ex 2 Switch (Mega Evolutions #130) mobility 2 Ultra Ball (Mega Evolutions #131) search 2 Wallys Compassion (Mega Evolutions #132) support recovery 14 Basic Fire Energy Mega Gengar ex build The aim with this deck is to reduce the amount of prize cards opponents take thanks to Mega Gengars Shadowy Concealment ability, then using Mega Sharpedo ex's Hungry Jaw attack after it takes damage for a massive 270 damage

you never want to pay the full to cast that measly 4/4 flier
You could make this deck work with the Poipole line, the Ekans line, the Alolan Grimer line (with the Promo A-Grimer card), or the Koffing line with a bit of tweaking, as long as youre running Nihilego and you can Poison your opponent