This is a good card, but one that requires being used in a specially-prepared deck - preferably a deck loaded with sorcery and instant cards for dealing damage, as opposed to lots of creatures
So be careful when choosing what to enchant and when
Since they are cursed with 'turn 1' or 'tap-in' restrictions, it seems difficult to aim for infinite combos
Hildibrand's card effect brings a Zombie creature token to the battlefield
At the start of your combat step, all your Merfolk creatures explore, revealing the top card of your library and putting it into your hand if its a land, or giving that Merfolk a +1/+1 counter and then letting you choose to keep it on top of your deck or into your graveyard
The artifact itself had to do something simple so that any deck that wanted to throw it in for its mulligan power could make use of it if they didn't mulligan it