I will probably get him today once the trex event spawns; after about 2 months of gameplay. It is not OP you just need to play smart. Switch to your ‘worst’ matchup dinosaur to ‘tank’ dmg; in other words die; and switch back to your ‘one-shot’ legend. In other words either an einia or a raptor will do the trick. Try to hit even if it cloaks; sometimes you will get a hit off, just swap in-time and make sure you’re faster and do loads of damage afterwards… Which isn’t that hard since the indo isn’t speedy and you have loads of options to crit, feriocious strike, big damage dealers,… Anything really. Just dont try dmg reduction, slows or stuns. It has immunity. Even remove positive effect doesn’t work anymore. It used to but they removed this; quite unfortunate since it was the perfect counter (it used to work a week or 2 ago; it could remove cloak completely)… Just like any dinosaur should have. So remove positive effect got nerfed in this case, don’t try to use it.
Every dino has a pro and a con; exploit it and you will gain trophies left and right. The only thing you can’t counter is being outlevelled, thats just unlucky or ‘git gud’; catch more dinosaurs!