I know you guys by now are sick of seeing koaki meiru everywhere or just hate the coin flip mirror match.
How to counter koa'ki meiru:
sphere kuriboh is good in many decks so teaching 3 won't hurt your consistency very much.
-last gamble with winged kuriboh is the best for the mirror match, winged kuriboh is a big thread to koa'ki meiru, balance is also good for the mirror match but not as good as last gamble build.
balance koa'ki doesn't run hey and I believe by now balance is the mostly used skill with koa'ki.
floodgate is way better than Canadia against koa'ki.
if you somehow survive the first assault lava golem is very good against koa'ki, most build don't run rook lord + koaki needs some turns to build their combos again + koa'ki prefers the 3 monster zones to be empty.
don't use stall because if u give koa'ki a chance to get hey trunade you will likely lose, just tech in lava golem, preferably in banish control.
especially SM, she can negate hey and the diamond core, lv 8 can go over maximus, fate maximus or urnight will likely stop the combos, if you face many sealed tooms koa'ki don't use spellbooks, it's an easy win for koa,ki with ice, ice is a bigger thread than maximus to spellbooks.
with 3 floodgates, 3 canadias and 2-3 offerings. if you turn 1/2 tie and your anchor survive you will likely win, geargia is generally good against any non-heavy backrow deck, offerings is great to run with Georgia since you just want to survive the first assault.
it just slows koa'ki down so I don't advise it that much.
no core reinforcement for the turn that you activate the skill on and no diamond protection for the next turn.
only good as a turn 1 starter
best against balance koa'ki.
@Makrov krauz I have lost 3 times now because they have always have hey, trunade! on their second turn when I don't have sphere kuriboh, continuous traps, or hallowed life barrier ready. Is it worth adding something like magic jammer, or should I just wait for my luck to get better?
Try using 3 winged kuribohs and 3 flute of summoning if you are using Koa'ki yourself
If you are using other Decks don't try to use many Koa'ki Meiru Counter cards to the point of hurting your deck consistency.
I don't advise using any card that can be useless against other decks like poisonous wind.
About magic jammer:
It's costy as you discard one card, can't protect from double trunade and it's a trap that can hurt your deck consistency if you are using a trap heavy deck because with it you may stop the hey trunade and lose to maximus effect and the otk.
Try to use one card that can fully protect you like winged kuriboh or sphere, don't hurt your deck consistency and combos too much.