With oases not respawning troops during the initial beginner's protection period and the heroes regaining all health when leveling, raid starts will be much more common for all tribes. And those who do it well will settle ahead of those who sim. I say that even though I generally sim well enough to claim a 125% or 150% 15C cropper. I would suggest building enough troops early to carry 4K resources and hero bomb a few oases while keeping your troops busy raiding the oases others have cleared the rest of the time. Don't risk your troops and don't build too many until after you settle your second village. Teamwork is definitely worthwhile here, too.
Well, did not work for me.