When Chandra's Firemaw enters the battlefield, you may search your library and/or graveyard for a card named Chandra, Flame's Catalyst, reveal it, and put it into your hand
The most common way is the suspend mechanic, like on Search for Tomorrow or Sol Talisman, which lets you exile a card from your hand, put some time counters on it, and then cast the card for free when those counters are gone
2x Aerodactyl ex 2x Old Amber 2x Mankey 2x Primeape 1x Marshadow 1x Hitmonlee 2x Poke Ball 2x Professors Research 2x Sabrina 2x Potion 2x X Speed Aerodactyl ex is also a fantastic counter to decks that rely on Stage 2 Pokemon as their primary attackers, such as Blastoise ex, Venusaur ex, and Charizard ex decks, given that it's Primeval Law ability does not allow opposing active Pokemon to be evolved
There might be situations when you cant attack to get the win