Its +1 lets you scry and tap an untapped artifact to then draw a card
Thrasios's ability to generate card advantage mainly drives the deck, with Vial Smasher the Fierce allowing you to play black and red, giving you access to new combos
Now I will say this now, This is not a color balanced set some color combos only 1 or 2 cards, while others have over 50
The Pokemon used by the opponents here are all the Poison half of Grass Pokemon
Enchantment Fighter Class (Gain the next level as a sorcery to add its ability.) When this Class enters, search your library for an Equipment card, reveal it, put it into your hand, then shuffle
The other top MDFCs are there mainly for their potential to lead a Commander deck rather than be used in the 99