D/D/D Wave High King Caesar and D/D Necro Slime bugs

YGO Omega Bugs
1
  1. Bug description
    D/D/D Wave High King Caesar cannot be Special Summoned even though the conditions on the field are correct for it’s summoning. The field contained 2 D/D/D Flame King Genghis. The special summon icon appeared over Caesar in the extra deck but there was no word saying “Special Summon” or “Xyz Summon” and when you clicked it, nothing happened.

The same happens with D/D Necro Slime in the GY in certain situations. The Activate icon appears over it without the text and you cannot activate the effect even though the conditions are right.

  1. Bug reproduction steps

Necro Slime Bug:

Starting Hand: D/D Savant Kepler, D/D Swirl Slime, D/D Savant Copernicus

  1. Normal Summon D/D Savant Copernicus. Send D/D Necro Slime to the graveyard from the deck with it’s effect.
  2. Use D/D Swirl Slime’s effect to fuse it with D/D Savant Kepler in your hand. Fusion Summon D/D/D Flame King Genghis.
  3. Try to use Necro Slime’s effect from the GY to fuse it with Swirl Slime in the GY to Fusion Summon a second Genghis but be unable to.

Caesar Bug:

Starting Hand: D/D Swirl Slime + D/D Necro Slime

  1. Fuse Swirl and Necro Slime together in your hand using Swirl Slime’s effect to make D/D/D Flame High King Genghis.

  2. Fuse them again in the graveyard using Necro Slime’s effect to make a second Genghis (Note that Necro Slime actually works here)

  3. Attempt to Xyz Summon Caesar but be unable to.

    [details=“Spoiler”]
    Necro Slime Bug: 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

Caesar Bug:
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
[/details]

  1. Screenshot OR error code

    Example
    Example2808×590 740 KB

  2. Expected behavior

I should have been able to select the card and Xyz Summon Caesar / Activate Necro Slime’s effect. But was unable to.

2

We tested this and it works for us. You can check the replays below:

https://cdn.discordapp.com/attachments/774339045325012993/809132220152938536/necro_slime.txt

https://cdn.discordapp.com/attachments/774339045325012993/809132230067879956/caesar.txt