Once Rith has dealt combat damage to a player, you can pay three mana to choose a colour, then create a Saproling token for each permanent of that colour in play
Worst of all, other Saproling cards that deal in counters make spore counters, not fungus counters
It also let us go down from nineteen to eighteen lands It can find a Reunion in the top three (the odds arent the highest, but its better than no selection at all)
The rest of the cards in the deck provide support in a variety of ways: Potions allow us to restore some Health to Pokmon whose Health is at a critical threshold, Teacher Research and Pok Ball speed up the flow of cards from the deck to the hand, and X Speed allows us to remove a Pokmon at the cost of one less Energy, which helps to maintain the huge advantage we get from Misty.
If you have the persist creature Murderous Redcap, you can kill it and bring it back with Celes over and over again to deal a loop of infinite damage to your opponents