Ruling Stacks

[cappuccino]

Do all pokebodies or power's stack unless they say ''you can't use more than one ??? each turn". If this is so then is nidoqueen's mother pheromone stackable?

 

[Chairman Kaga]

Yes to both.

 

[DocRobot_K-176]

Mother Pheromone does stack.

Be careful, though. There are some cases where this is not true. Consider Expedition Venusaur's Harvest Bounty. It allows you to attach 2 energy cards per turn. However, if you have multiple Venusaur in play, it does not allow you to attach 3 or more. That is because the effect of the power replaces the rule for attaching energy.

Q. For Expedition Venusaur's "Harvest Bounty" Pokemon Power, if I have more than one in play, is it's power cumulative? For example, if I have 2 Venusaurs on the bench, could I then attach 3 energy per turn to my Active?
A. This is a replacement effect and it is not cumulative. No matter how many Venusaur's are in play, you can only attach 2 Energy cards to your Active Pokemon instead of 1. (Sep 16, 2002 WotC Rules Team Update, Item 8)

This is also true of Rapidash and Full Flame:

Q. If I have Rapidash with the "Fiery Aura" Poké-BODY, and if the Full Flame stadium is in play, does that mean a Burned Pokémon takes eight damage counters when burned (two times two equals four, times two again equals eight)?
A. No, these two effects are not cumulative. They both say "put four damage counters instead of two", and four is four, no matter which one gets you there. (Feb 16, 2006 PUI Rules Team)

So just be careful around PokéPowers and Bodies, and look at the card more carefully if the effect is a replacement of an existing rule.

 

[cappuccino]

Yes same goes for darkrai lv.x. Thanks to you both.