It has many ways to summon, and it is attractive that it can destroy powerful monsters on the opponent's field and monsters that are resistant to effect destruction by battle
Return 1 face-up Synchro Monster you control to the Extra Deck to select and Special Summon a Tuner monster(s) from your Graveyard, whose total Levels equal the Level of that Synchro Monster
It may be best to focus on mastering one specific mechanic, such as the Energy retrieval outlined above, before truly honing the scope of a deck
If this Pokmon moved from your Bench to the Active Spot this turn, this attack does 90 more damage
Give it some damage doubling with Torbran, Thane of Red Fell or Solphim, Mayhem Dominus to really get things going
Crystal Beasts can be placed in your backrow as Continuous Spells instead of going to the Graveyard and placing them there can often activate a bunch of effects that will come in handy for this archetype, especially if the Field Spell "Ancient City - Rainbow Ruins" is in play