Load your Graveyard with both attributes, then bring out Chaos Dragons like Lightpulsar Dragon and Darkflare Dragon
These cards are great because they require your opponents to use up one of their valuable removal cards/abilities or seriously ration mana for casting and attacking
The Japanese version of the Iono card was selling for over $1,000 in the secondary market
Goro-Goro works on a similar axis we make mana with Tanuki Transplanter and Bear Umbra, so getting to use that mana to make 5/5 Dragons is sweet
The main thing to keep in mind is that there is no right or wrong answer, there is only what works for you and the particular deck youre building
Lunala 206 Alolan Muk ex Dark 160 Chemical Panic (80) 1 special condition from among Asleep, Burned, Confused, Paralyzed, and Poisoned is chosen at random, and your opponent's active Pokmon is now affected by that special condition