You can only use each of the following effects of "Therion "Reaper" Fum" once per turn.
• You can target 1 "Therion" monster or 1 Aqua monster in your GY; Special Summon this card from your hand, and if you do, equip that monster to this card.
• During your opponent's turn (Quick Effect): You can target 1 "Therion" card in your Spell & Trap Zone and 1 card your opponent controls; return them to the hand.
A "Therion" monster equipped with this card gains 700 ATK, also it can activate the 2nd effect listed above as if it were "Therion "Reaper" Fum".