At this moment 3rd wish is considered to be a joke but in reality it is not too bad, the main issue being there are no dervish minions to play it on. We are talking about actual dervish minions you play from your hand and not tokens. Right now the main target for it is zirix’s iron dervish as most of the times it is the only viable target that will stay in play after you end your turn.
So for 3rd wish to be less unwieldy how about it gets changed to: '‘give a friendly dervish minion +3/3 and flying. If it is a wind dervish it no longer disappears.’'
The dunecaster effect makes it much easier to cast because often times you do not want to place it on a minion that will disappear.