Collectible Card Game Headquarters

Describe the Bug:
When Wurmcalling is cast for so x=0, it puts a 0/6 green Wurm creature token onto the battlefield.

Which card did behave improperly ?
Wurmcalling

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
JOU v1, duel

What exactly should be the correct behavior/interaction ?
When Wurmcalling is cast for so x=0, it puts a 0/0 green Wurm creature token onto the battlefield.

Are any other cards possibly affected by this bug ?
Tried Miming Slime, Slime Molding, Phyrexian Rebirth and Riptide Replicator, and all of them produced a 0/0.

Describe the Bug:
When Saproling Burst has 0 fade counters on it, Saproling creature tokens put onto teh battlefield with it's ability are 0/1.

Which card did behave improperly ?
Saproling Burst

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
JOU v1, duel

What exactly should be the correct behavior/interaction ?
When Saproling Burst has 0 fade counters on it, Saproling creature tokens put onto teh battlefield with it's ability die (are 0/0).

Are any other cards possibly affected by this bug ?
-

Same bug as X=0 Wurmcalling here; setting a natural toughness of 0 on a token uses the token's default toughness (unlike with power, which has to be set to -1 to use the default). Please merge.

Fixed in 8b18084

The fix affects both/all cards?

Yup !

Wurmcalling and Saproling Burst both work properly as of CoRM15 mini.