Original effect:When this card is Normal or Special Summoned: You can target 1 Spell Card in your Graveyard; add that target to your hand. Banish any monster destroyed by battle with this card. If this face-up card would leave the field, banish it instead.
Errata effect :You can only use the (1) effect of “Dark Magician of Chaos” once per turn. (1) During the End Phase, if this card was Normal or Special Summoned this turn: You can target 1 Spell Card in your Graveyard; add it to your hand. (2) At the end of the Damage Calculations, if this card destroyed an opponent’s monster by battle: Banish that monster. (3) If this card would leave the field, banish it instead.
2 big differences in this card's effect. Now you may only use his effect to add a spell card from you're grave once per turn, so you can't resummon/summon multiple DMOCs and add multiple spells and also you can only add at the end phase and not when you summon him.
my opinion: One i don't think DMOC really needed an errata since the dimension fusion loop wont work due to dimension fusion being banned forever(unless they do an errata and make it soul charge for banished cards). So without a consistent loop, don't see why it needs to be weakened to endphase instead on summon, but konami don't understand power creep too well.Even though i don't a loop that would work in modern day yugioh, im assuming someone better and smarter than me can find one but i doubt it will be consistent/competitive. The main use i see this card in is infernoids. Reasoning or monster gate this special summon a 2800 beater and add a new reasoning, monster gate, snatch steal etc at endphase.
