Giratina Altered comes back for a few days. Giratina Origin then stays for a month. Lets check out if they are useful.
Gyms and Raids
As a generalist, Giratina Origin looks more useful ranked #30 in DO@20 but not very high at all. Giratina Altered is ranked #131. (to see this change the filter on the right to <All>). As a generalist, I would think only new players would find this Pokemon useful, but even then there are many non-legendary Pokemon ahead of it that they would eventually get.
Within dragon types, Giratina Origin is #8 and Altered is #12 so this is not the reason to use them. Within ghost types, Giratina Origin is #2 and Altered is #8. It looks like Giratina Origin has higher TDO and lower DPS than Gengar and is a useful alternative when you need a Pokemon that lasts longer.
But only looking at dragon and ghost types only answers half of the question. I prefer to also consider the opponent's type. Giratina Altered is not in the top 50 DO@20 against any opponent type. Giratina Origin looks useful however. Giratina Origin is #11 against dragon types, but since Palkia and Dialga are #1 and #2 I assume everyone already this covered. Where it really shines is against ghost and psychic types. Giratina Origin is #1 in DO@20 against ghost types . It has 4.3% less DPS than Mewtwo, but 28% higher TDO. So it can easily find a spot when fighting ghost types. Giratina Origin is also #1 in DO@20 against psychic types . It has 7% higher DPS but 9.7% lower TDO than Mewtwo. As a third alternative Weavile has even higher TDO than Mewtwo and slightly less DPS.
As for Giratina Origin's move set, it looks like its best move set is Dragon Tail and Shadow Ball, but as a generalist, untyped opponent. But since it is only a specialist against ghost types and against psychic types , you'll want to use Shadow Claw and Shadow Ball.
Trainer Battles
It's very important to look at PvP seperately from Gyms and Raids. First, the moves themselves have different stats. In this case, Shadow Claw + Dragon Claw is the highest DPS move set for Giratina Altered. and Shadow Claw + Shadow Ball is the highest DPS move set for Giratina Origin
Also, survivability wins in PvP which means looking for highest TDO and not DO@20. In master league battles, Giratina Origin is #1 in TDO and Giratina Altered is #10. In ultra league battles, Giratina Origin is #5 in TDO and Giratina Altered is #9. In great league battles, Giratina Origin is #16 in TDO and Giratina Altered is #17. As a generalist, Giratina Origin looks like a monster in master league battles.
Within master league battles, lets look at specific opponent types. We see Giratina Origin is good against Bug (#12) , Electric (#14) , Fighting (#2) , Fire (#17) , Ghost (#17) , Grass (#17) , Normal (#2) , Poison (#14) , Psychic (#7) , and Water (#8) . Looking at specific opponent types, we see Giratina Altered is good against Bug (#10) , Electric (#17) , Fighting (#6) , Fire (#10) , Normal (#1) , Water (#16) . (if the opponent is using STAB moves) It looks like Giratina Origin excels against Normal and Fighting, and is respectable against 8 other types.
For ultra league battles, the Giratinas looks good against normal types and fighting types, but it ranks lower than master league in all other types. Unless you've got a bunch of good Giratinas, I would save it for master league battles.
I would also pass on either Giratina for great league battles also.
Comments or Suggestions
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