pokemon garchomp card “Cynthia's ex” sv9a 080/063 Japanese Ver (SR) – K-TCG Pokemon Card - S&M: Unified

As a Jeskai card, Sonics blue, red, and white mana color allows for synergies with Tails, Knuckles, and Amys cards, giving players the opportunity to build a deck featuring all four Sonic heroes known so far

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

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

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