pokemon meganium card 004/106 2005 Near MINT Japanese r443 each G Energy card attached to your G Pokemon instead provides GG Meganium (53/165) [Expedition: Base Set]

Ouroboroid (~1317) Ouroboroid is one of the Most Expensive Edge of Eternities cards a 1/3 Plant Wurm that amplifies your board by placing +1/+1 counters on all your creatures based on its power each combat

This Rarity was between regular "Full Arts" and Gold Cards - Hyper Rare (TPC) - Rainbow Rare (TPCI) GX GX Full Art GX Rainbow Rare gx939437 79.9 KB Tag Team GX introduced in the last year of SM, these were still Pokemon GX, except now they were more powerful and worth 3 Prize Cards - a precursor to SwSh's Triple Rare VMAX Pokemon

Once each turn, you may play a card from exile with a collection counter on it if it was exiled by an ability you controlled, and you may spend mana as though it were mana of any color to cast it

So training is important and you can start by sparring with your own characters which is around the same level