Just wanted to know if certain creature ability's stacked.
it depends on the type of ability. In general all triggered abilities are cummulative, activated abilities are always redundant and static abilities can be either
Example:If I have two Fire Servant's out then does it quadruple the dmg?
Fire Servant has a static ability that generates a replacement effect. What happens with these is if there more than one affecting single event the player that will be affected chooses the order in which to apply them, applies the first one then if the second and subsequent ones are still valid applies them in the order chosen.
In this case if you shock your opponent the first fire servant double the damage to 4 then the second effect still applies so doubles that to 8, if there was a third a total of 16 damage would be dealt.
or
Example:If I have four Gobbling Ooze's out can I pay the one green mana and sacrifice one creature and have the +1/+1 go on all four?
Gobbling ooze has an activated ability as signified by the format [cost]:[result] if you want to give each of them +1/+1 you will have to activate and pay for the abilities on each one seperately. So you would have to sacrifice 4 different creatures 1 to each of the oozes
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- H.L Mencken
I Became insane with long Intervals of horrible Sanity
All Religion, my friend is simply evolved out of fraud, fear, greed, imagination and poetry.
- Edgar Allan Poe
It adds to or subtracts from another value (for example, "gets +X/+X" or "additional"), or
It replaces something with more or less of it (for example, "double that damage", "prevent X of that damage").
Other continuous effects are usually not cumulative. This applies whether an activated, triggered, static, or spell ability generates the continuous effect.
For example, Fire Servant's continuous effect is cumulative because it replaces damage with more damage. However, if the damage is replaced, say, with drawing cards instead, the effect is not cumulative.
One-shot effects are generally cumulative, as long as the effect can be done multiple times. An example is Gobbling Ooze's one-shot effect, which is to put a +1/+1 counter (C.R. 610.1). If you activate Gobbling Ooze's ability, say, four times, you can put four +1/+1 counters on it.
Remember, though, that each payment of a cost applies to only one ability. Paying the cost for one ability doesn't pay the cost for other abilities, even if they are identical (C.R. 117.10).
Example:If I have two Fire Servant's out then does it quadruple the dmg?
or
Example:If I have four Gobbling Ooze's out can I pay the one green mana and sacrifice one creature and have the +1/+1 go on all four?
it depends on the type of ability. In general all triggered abilities are cummulative, activated abilities are always redundant and static abilities can be either
Fire Servant has a static ability that generates a replacement effect. What happens with these is if there more than one affecting single event the player that will be affected chooses the order in which to apply them, applies the first one then if the second and subsequent ones are still valid applies them in the order chosen.
In this case if you shock your opponent the first fire servant double the damage to 4 then the second effect still applies so doubles that to 8, if there was a third a total of 16 damage would be dealt.
Gobbling ooze has an activated ability as signified by the format [cost]:[result] if you want to give each of them +1/+1 you will have to activate and pay for the abilities on each one seperately. So you would have to sacrifice 4 different creatures 1 to each of the oozes
- H.L Mencken
I Became insane with long Intervals of horrible Sanity
All Religion, my friend is simply evolved out of fraud, fear, greed, imagination and poetry.
- Edgar Allan Poe
The Crafters' Rules Guru
For example, Fire Servant's continuous effect is cumulative because it replaces damage with more damage. However, if the damage is replaced, say, with drawing cards instead, the effect is not cumulative.
One-shot effects are generally cumulative, as long as the effect can be done multiple times. An example is Gobbling Ooze's one-shot effect, which is to put a +1/+1 counter (C.R. 610.1). If you activate Gobbling Ooze's ability, say, four times, you can put four +1/+1 counters on it.
Remember, though, that each payment of a cost applies to only one ability. Paying the cost for one ability doesn't pay the cost for other abilities, even if they are identical (C.R. 117.10).