Charizard is a fire-breathing dragon, one of the most primal and universally resonant creature archetypes in human storytelling
In general terms, companions encourage creative deckbuilding and reinforce the idea that self-imposed restrictions can be fun and novel
Small six-sided dice (with traditional pips) are also commonly used to keep track of damage, but with some Pokmon surpassing 300 HP, it gets a bit unwieldy putting that many standard six-sided dice on a Pokmon, so these may be a good alternative, although you might also need more than what is included in the Elite Trainer Box to properly keep track
Spells Instead of focussing on creatures, you could favor spells
I guess its all part of the futuristic Starlink mystique
Summon Sleeping Widows : This unit duo can be summoned and attack at very fast speeds, getting high damage into the opposing Phoenixborn before they have a reasonable chance at defending it