pokemon garchomp card “Cynthia's ex” sv9a 080/063 Japanese Ver (SR) – K-TCG Garchomp Ex Holographic Pokémon TCG

Here are the general rules of thumb I follow when addressing this question myself: If my deck has green, the best mono green mana ramp spells are usually better than my multicolor options

This helped with matches such as Gyarados and Machamp

This card would otherwise be too costly to play in the deck, since you're very vulnerable to board wipes, and need to have an opponent on the ropes before they can build up the mana to cast a Sunfall

Feature Article Broken Link Changing Planes

You can take advantage of that by gaining a lead in development and attempting to end the game before they are able to deploy all of their resources

Wool said that matters in an online economy where trust is hard to establish