"Nekroz of Areadbhair" Rating Score by Mr. JNK

About the effect of ①. If you want to use it as a search card without losing an ad, release the shrit in your hand and drop Nekroz Ritual Spell on GY → search for Ritual Spell with the effect of her Nekroz Ritual Spell sent to GY. As mentioned below, it's major weakness is that it consumes Ritual Spells in the Deck, and it's currently difficult to use in terms of add loss without shrits.
Focusing on the effect of ②, it is powerful in that it can hit with a high RBI of 3300 while suppressing monster effects, and it can handle troublesome monsters. Since you can negate the effects of monsters in your hand and GY, there are many situations where interference with non-EX monsters is useful. I think it's a card that plays an active role in turning back and maintaining the board after the middle stage, rather than preemptively suppressing it.
However, Aradvar's deployment method is to release Shlit with his Nekroz or banish his GY's unicorn, Brynak, with his Nekroz, so there are many times when it comes to the first hand. Even if you don't use more than one copy, I think it's worth it to make use of its high hit points and its anti-monster effect, depending on your opponent.
The release of ② is a cost, so it's a charm that even if you release Shrit, the effect of Shrit doesn't activate. Also, the 2nd effect is an optional effect of time, but I don't think there is a timing to miss the timing for this type of counter effect due to the activation conditions, so I don't have to worry about that.