- This card's effect to gain Life Points is similar to the effect of "Life Stream Dragon".
- This card's ability is similar to that of "Darkness Eye" from the GX anime, as they both restore the user's Life Points to 4000.
- The face on this monster vaguely resembles Nezbitt.
- The name of this card is derived from Zadkiel, an archangel in Judaism. Zadkiel is known for being merciful to those who deserve it, as somewhat reflected in his effect of restoring Life Points to no more than 4000.
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