Gholdengo's first attack allows players to attach Metal energy from the hand to Pokmon on the board in any way they choose, which makes the card great for energy acceleration
Hydro Bazooka does up to 160 damage with five energy attached, but can be deployed for 100 damage at just three energy, so there's potential to turn this around if the opponent's hand doesn't quite play how they had hoped
Gothenburg vintage and old school scene: Some people will never stop
Tokusano Shinkyojin One of the most questionable cards of the set, Tokusano Shinkyojin allows you to send monster(s) from your hand and/or face-up field to the GY whose total levels equal 10, then draw 2 cards
And then you play against him, and every single Teferi deck plays the exact same way
(Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.) Whenever an opponent attacks another one of your opponents, you and the attacking player each draw a card and lose 1 life