Energy-Absorbing Monolith is a Normal Trap Card.
Trap Cards are normally Set first and can be activated on a later turn, often in response to an action.
On the current TCG and OCG Forbidden & Limited lists tracked here, Energy-Absorbing Monolith is Unlimited.
YGOPRODeck lists Energy-Absorbing Monolith for these formats: Duel Links, Edison, TCG, OCG, Master Duel.
A listed print of Energy-Absorbing Monolith appears in Gladiator's Assault (GLAS-EN075) at Super Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Energy-Absorbing Monolith is about $0.27 on TCGPlayer (prices change frequently).
