Space-Time Smackdown has presented a lot of options on how to make the best Palkia ex deck in Pokemon TCG Pocket
So while some decks might struggle to produce a big payoff from an X spell, green strategies are often well suited to produce lots of mana in a short amount of time, allowing cards like Invasion of Ikoria to suddenly apply pressure with whatever creature is going to be the best solution to a given situation
Its also a symptom that blue spell-based control got weaker
5 Ajani, Wise Counselor Ajani, Wise Counselor is among the most archetypal Ajani cards, featuring various mechanics the character has been known to utilize while synergizing well with tokens
Then when someone casts their first spell, you can deal its cost in damage to another player like a certain Time Spiral legendary powerhouse that dominated multiplayer back then too
Let's look at an example: Invasion of Fiora is a Battle -- when you cast it, you place it in front of an opponent, who must now protect the battle