Your deck must be able to set up your main attacker reliably within the first two turns and it must do so consistently across six rounds of competitive play, not just once
You wont add mana, gain life, or deal damage
Generally, you may access the monsters in your Extra Deck at any point during your Main Phase and may Summon using the appropriate Summoning method, assuming you can do so
Then, you have some free space to fill with handtraps and other good cards
This legendary Pokmon has made the Basic Grass Energy more desirable, as its Teal Dance ability is a huge draw and consistency engine
Some types have rather unique playstyles, and the Fire-type Pokmon have some of the most unique playstyles in the game, as their cards are incredibly varied, and they can adapt to a wide variety of matchups