Den äldste Wands makt är att lära av många mästare.

Dumbledore säger huvudorsaken att äldste Wand har blivit så kraftfull, eftersom det har spenderat århundraden som samlar kraft och erfarenhet från många mästare.

“Believers in the Elder Wand, however, hold that because of the way in which it has always passed allegiance between owners — the next master overcoming the first, usually by killing him — the Elder Wand has never been destroyed or buried, but has survived to accumulate wisdom, strength, and power far beyond the ordinary.”
- The Tales of Beedle the Bard

Wands absorberar erfarenheter från sina ägare, så en troll som har gått igenom många kraftfulla trollkarls händer genom århundradena skulle ha absorberat en hel del erfarenhet.

“As can be seen, Godelot considers his wand to be a helpmeet, almost an instructor. Those who are knowledgeable about wandlore26 will agree that wands do indeed absorb the expertise of those who use them, though this is an unpredictable and imperfect business; one must consider all kinds of additional factors, such as the relationship between the wand and the user, to understand how well it is likely to perform with any particular individual. Nevertheless, a hypothetical wand that had passed through the hands of many Dark wizards would be likely to have, at the very least, a marked affinity for the most dangerous kinds of magic.”

De flesta trollkarlar föredrar en ny troll som skulle formas till deras magiska stil än en begagnad, och wands är vanligtvis kvar med sina ägare efter ägarens död, så de flesta trollkarlarna förblir hos en ägare och får inte gå vidare århundraden som Elder Wand.

“Most witches and wizards prefer a wand that has “chosen” them to any kind of secondhand wand, precisely because the latter is likely to have learned habits from its previous owner that might not be compatible with the new user’s style of magic. The general practice of burying (or burning) the wand with its owner, once he or she has died, also tends to prevent any individual wand learning from too many masters.”

Även om äldre Wand kanske inte har varit något kraftfullare än andra wands vid dess uppbyggnad, är den troliga orsaken till att den är så kraftfull, trolig att den absorberat erfarenhet från många mäktiga trollkarlar i århundraden av användning.

Spells cast med äldste Wand är effektivare än normalt.

Äldste Wand verkar göra stavar gjutna med det mer effektivt. När Harry sätter på sig, försöker Hermione och fixar det så att det kan användas igen med hjälp av Reparo .

“R – Reparo.’

The dangling half of the wand resealed itself. Harry held it up.

‘Lumos!’

The wand sparked feebly, then went out.”
- Harry Potter and the Deathly Hallows, Chapter 17 (Bathilda’s Secret)

“Ollivander held out a trembling hand and Harry placed the two barely connected halves into his palm. ‘Holly and phoenix feather,’ said Ollivander in a tremulous voice. ‘Eleven inches. Nice and supple.’

‘Yes,’ said Harry. ‘Can you –?’

‘No,’ whispered Ollivander. ‘I am sorry, very sorry, but a wand that has suffered this degree of damage cannot be repaired by any means that I know of.”
- Harry Potter and the Deathly Hallows, Chapter 24 (The Wandmaker)

Trots att samma stavning inte fungerar när Hermione (som är lika kompetent som Harry) försökte det, kan Harry fixa sin trasiga stav genom att kasta Reparo på den med Elder Wand.

“He laid the broken wand upon the Headmaster’s desk, touched it with the very tip of the Elder Wand and said, ‘Reparo.’

As his wand resealed, red sparks flew out of its end. Harry knew that he had succeeded.”
- Harry Potter and the Deathly Hallows, Chapter 36 (The Flaw in the Plan)

Exakt samma stavning som misslyckades med att fixa sin trollstav innan det lyckades när han kastades med äldste Wand.

Äldste Wand är emellertid absolut inte oslagbar i en duell.

Även om det är en kraftfull troll, är äldste Wand tydligt oslagbar eftersom dess ägare har blivit slagna flera gånger under historien, som Dumbledore påpekar.

“What must strike any intelligent witch or wizard on studying the so-called history of the Elder Wand is that every man who claims to have owned it28 has insisted that it is “unbeatable,” when the known facts of its passage through many owners’ hands demonstrate that has it not only been beaten hundreds of times, but that it also attracts trouble as Grumble the Grubby Goat attracted flies.”
- The Tales of Beedle the Bard

Förutom Dumbledores nederlag av Grindelwald finns det minst ett annat känt fall av en trollkarl som slår ägaren till äldste Wand i en duell - Loxias, som slog Barnabas Deverill.

“All that is certain is that a wand called the “Eldrun27 Wand” by its owner, Barnabas Deverill, appeared in the early eighteenth century, and that Deverill used it to carve himself out a reputation as a fearsome warlock, until his reign of terror was ended by the equally notorious Loxias, who took the wand, rechristened it the “Deathstick,” and used it to lay waste to anyone who displeased him.”
- The Tales of Beedle the Bard

Även om äldste Wand är kraftfull, är oslagbar i en duell inte en av sina krafter.