When did I mention Farseers? This isn't predestination or divination, it's straight-up strategy. They might show where the enemy could come from, and even if mistakes are made, you won't be able to outmaneuver us. It's not necessarily because of intelligence, tactical acumen, or some bloody runes, but if there's anything playing tabletop teaches you: relying on outmaneuvering Eldar is goddamn suicide.
Oh, I'm quite chill. Text is difficult to expose tone, but I see how you thought I was talking. I was thinking of it with a smile.
All dis yappin 'bout stra-tee-logics iz borin! If da eldar gitz ain't gonna scrap den we brings da WAAAGH ta dem! If dey runz away den we'ze wun, an we gets to da lootin. If dey come back den we stomps 'em, evver way orks win!
And while you're shouting like the barbaric fiend that you are, the equally brute mon-keigh will be tearing you apart, enjoy whilst you can filth.
Something very similar to you but pink and with a tad more of intelligence. But don't worry you will have something in common at the end of all this, you'll both be dead and rotting.