Trial 2213

Walkthrough
Trial: Deal the finishing blow to a set number of experience-yielding monsters with the prescribed elemental attack.

Objective: 250 experience-yielding Leech creatures.

Attack: -damage of 250 points or greater.

Equipment: Teiwaz must be equipped.

Things that Work
As of the September 2010 Update, the person wielding the Teiwaz no longer has to be the one to deal the killing blow to receive credit. Proof

Spells: Any dark-based spell. These include, but are not limited to, Drain, Bio, Noctohelix.
 * Notes: A 0 HP recovered Drain works, as it still does damage to the mob. With Bio and Noctohelix, the damage that lands has to be the finishing blow. Allowing the mob to die from the DoT of the spell does not constitute as a successful kill.

Weaponskills: Any Dark-based elemental Weaponskill.
 * Cataclysm is amazing for this family of trials, even at 100% tp it will do 600+ darkness dmg to all mobs in AoE but you need to be whm or /whm to use said WS.--Josiahkf 13:49, February 4, 2011 (UTC)
 * Note: Haven't seen Starburst or Sunburst proc as a successful kill, given that it deals Light or Dark elemental damage.
 * Just got a successful kill with Starburst. --Faey

Blood Pacts: Any dark-based elemental blood pact. Nether Blast, Somnolence, Lunar Bay, and Zantetsuken work. Howling Moon does not.