It also plays nicely with Magics many leaves the graveyard payoffs like Teval, the Balanced Scale since it consistently triggers them once each turn
On her own, Maralen of the Mornsong seems like a fair but risky card, allowing the opponent to search up any card they want at the cost of 3 life
Similar to how Gift of Doom can be attached to Horobi, Death's Wail if you morph it)
That being said, investing in them now could be slightly premature
The fact that this ability draws you one card more than you discard makes it especially good, since you can use it turn after turn to increase your hand size in case you miss
Being a ritual monster at the time made him special, but, with the high attack, it could take on some of the series biggest monsters and come out on top despite not having an effect