If this card is destroyed by battle or card effect: You can Special Summon 1 LIGHT Dragon monster from your GY, except "Blue-Eyes Ultimate Spirit Dragon"
"Rock of the Vanquisher" is a de facto Field Spell that supports the Deck with GY recycling or effect to Summon "Vanquish Soul" monsters from hand (useful for triggering the "Normal Summoners" on the opponent's turn), while "Vanquish Soul Rocks" is a situational summon that provides Spell Speed 1 removal
The Illustration Rares for these cards are stunning, and the uniqueness of the typing can give players a fair amount of excitement while opening these packs
You can further mess with your opponents lands with Strip Mine and Wasteland
Sakashima the Impostor (for flavor with the "clone tribal" theme) Zur the Enchanter (much like in Modern, having a tutorable clone is very powerful) Rayne, Academy Chancellor and Hakim, Loreweaver (where Mirrorweave can be a copy of the best aura enchanting your commander) Estrid, the Masked (enchantress) Angus Mackenzie (where two Ghostly Prisons or Propagandas are better than one) Zedruu the Greathearted (where Mirrormade can copy something Donateable to give to your opponent for card advantage) Teferi, Temporal Archmage (where Mirrormade can replace Copy Artifact as part of the Isochron Scepter + Dramatic Reversal combo, where the main plan is to get Dramatic Reversal under Isochron Scepter to get infinite untaps of non-land permanents and then use Mirrormade to copy Isochron Scepter and imprint something that actually ends the game, with Swan Song being a popular meme-ish choice)
Introducing Never-before-Seen Characters as Leader Cards