Once per turn, you can target a monster your opponent controls and equip it to this card practically turning your opponents monster into an equip spell
Incapsula incident ID: 562000120611832625-513765731741074223
Psychic and Lightning Energies, the most common, still feature in only one theme deck, but so does Fire Energy, one of the two rarest
Special Summon both monsters, but for each one, as long as it remains face-up in your Monster Zone, you cannot Special Summon, except "Gouki" monsters
Their card back is entirely different to the one found on standard Pokemon cards which are standardised to allow any card to be used when deck building (take a look at our Pokemon card back design guide for more details)
Elspeth can come down in the mid-game since she costs five mana, either establishing a board presence with her first two abilities or destroying a problematic creature of your opponents, making her a control players dream planeswalker