How do IVs affect a Pokemon's combat in Pokemon Go?
Just found out there are hidden Individual Values (Attack, Defense and Stamina) for a pokemon in Pokemon Go. How do these value affect the combat performance in gym?
Attack Value: A Vaporeon with a Water Gun has 6 attack points, does a higher attack value makes this Vaporeon's Water Gun more powerful so the Water Gun will get rid of more than 6 HP of the opponent's HP? Or does a higher attack value make this Vaporeon to response faster when you click the screen to attack or swipe to dodge?
Defense Value: Does a higher defense value gives more HP or simply better defense so a 6 point Water Gun attack can only get rid of half or less of the HP?
Stamina Value: Does a stamina value gives more HP or it makes the stamina bar to fill up quicker in gym battle?
Best Answer
Let me do a brief introduction to Individual Values.
Each type of pokemon has different base values for Attack, Defense and Stamina. However, each Pokemon is also randomly assigned a 0-15 bonus to each of them. These bonuses are called IV's (Individual Values). They represent genetic variance, in that some pokemon are just genetically superior to others.
Base stats are obtained from base Gen 6 stats:
BaseStamina = 2 * Hp
BaseAttack = 2 * ROUND(Atk0.5 SpA0.5 + Spe0.5)
BaseDefense = 2 * ROUND(Def0.5 SpD0.5 + Spe0.5)
Hp, Atk, Def, SpA, SpD, Spe are all the base values in Gen 6.
Then each value is obtained adding the base stat and the relative IV (with a common multiplier):
HP = (BaseStamina + IVStamina) * Multiplier
Attack = (BaseAttack + IVAttack) * Multiplier
Defense = (BaseDefense + IVDefense) * Multiplier
This means that IVs only grant you a bonus for each stats.
Regarding your questions:
Does a higher attack value makes Water Gun more powerful?
Definitely yes. Stats in Pokemon Go are like stats in the classic series, a higher Attack deals higher damage.
Does a higher attack value make Pokemon to response faster?
I don't think so, moveset has the biggest impact upon DPS (damage per second) and it has nothing to do with IVs.
Does a higher Defense value gives more HP or simply better defense?
As you can see from the formulas above, HP depends on BaseStamina + IVStamina. So a higher Defense will give your Pokemon a better defense when attacked, like in the classic series.
Does a Stamina value gives more HP or it makes the Stamina bar to fill up quicker in gym battle?
Same answer as the previous question, HP is affected by BaseStamina + IVStamina.
I can't tell you anything about the Stamina bar, at the moment.
More info on TheSilphRoad Reddit, source here and here.
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Does IV matter in Pokemon Go battle?
So, to me, it seems that, in PVP, IV's are rather unimportant, except that maybe a pokemon with poorer IVs has to be powered up a half a level or so more than a pokemon with great IVs to reach about the same CP while still staying within the CP limits.How do IVs affect Pokemon go?
The higher the IV stat, the better the Pok\xe9mon's Attack, Defence or HP will be. If a stat has an IV ranking of 15 - the maximum possible stat - then the bar will be coloured red. On the other hand, if a stat bar is completely empty, then the IV ranking for that stat is 0.Is CP or IV better in Pokemon go?
As explained by RustyMembers the IV is by far more important than the CP of a Pokemon. But actually equally or sometimes even more important is the Moveset of a Pokemon. A Pokemon with the best moveset dps wise but with lower IV will perform better than a similar one with a different moveset but higher IV %.Pokémon EVs and IVs Explained! - Pokémon Fact of The Day
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.