Check out Regulus’ gains.
POTE-JP008 Therions’ “Empress” Arasia
Reptile/Effect, EARTH, Level 8, ATK 2100, DEF 2500
You can only use the 1st and 2nd effect of this card’s name each once per turn.
(1) You can target 1 “Therions” or Reptile monster in your GY; Special Summon this card from your hand, and if you do, equip it with that target.
(2) You can discard 1 card, then target 1 “Therions” Monster Card in your Spell & Trap Zone; Special Summon it.
(3) A “Therions” monster equipped with this card gains 700 ATK and the 2nd effect of this card’s name.
POTE-JP009 Therions’ Irregular
Machine/Effect, DARK, Level 10, ATK 1600, DEF 2800
You can only use the 1st, 2nd, and 3rd effect of this card’s name each once per turn.
(1) You can target up to 3 “Therions” monsters in your GY; Special Summon this card from your hand, and if you do, equip it with those targets.
(2) Your can discard 1 “Perpetual Engine Argyro System”; destroy all cards your opponent controls.
(3) While this card is equipped to a monster: You can Special Summon it, then equip to this card the monster it was equipped to.