pokemon sealed booster packs TCG: Mega Evolution The Pokémon Mystery Pack is a sealed pack that contains cards from the EX Crystal Guardians and Vintage series Pokemon Booster Pack - Scarlet

This allows them to play more powerful cards as well as removal and discard spells to answer their opponents cards

Sure, you can go in a Hydra kindred direction, which is probably the most straightforward way to go, but you can also go for a big burn spell deck or a ramp deck

Decks with lots of cheap cantrips and card draw are perfect homes for Rite of the Dragoncaller, since you wont risking running low on resources

Instead, if Rally the Ancestors or Collected Company decks do end up being too good, I expect those namesake cards to get hit due to the risks created by cards like these in non-rotating formats where every new creature printed has the risk of making those cards broken all over again