The Phantom Knight cards are a series of monsters, Spells, and Traps that hang around in the Duel like ghosts even after they've gone to the Graveyard and gain different abilities whether they're in your hand, on the field, or in the Graveyard
Its all about powering up Mega Zeraora ex with enough energies to dish out high levels of damage
Of course, this is not at all how the surfaces of a genuine example should look
Enchantment - Class Tori D'Avenant, Fury Rider Vigilance, trample Whenever Tori D'Avenant attacks, all other attacking creatures you control get +1/+1 until end of turn
The experience counter goes on you, the player, not on Azula
When used to cast legendary spells, not only can Delighted Halfling produce mana of any color, but they also make that spell uncounterable