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With this opening hand, I'd play Soul Warden first, because then I'd get a 3/3 Pridemate on turn two. Turn 3 then Suture Priest and Mother of Runes (in that order) provided I have another land by then. I don't need the Prison when I have a 6/6 (or bigger) Pridemate. If I don't get that third land, I'd cast the Mother and the Snare. Depending on the game state by turn 4, Prison, if I'm facing way too much possible offense from the other players, Warhammer if not. So in most likelyhood the Warhammer would be my turn 4 play. I would not commit any more creatures to the board after that and instead start saving cards in hand. That's how I would plan it out with this opening hand, in a vacuum.

If I know/suspect my opponent(s) to be playing with a lot of targeted or damaging removal, then the Mother on turn 1 it is, followed by the Warden and the Snare turn 2. Turn 3 drop Pridemate. Turn 4 sees the Prison if too much offense is present already or I don't have a fourth land by then. Otherwise Warhammer, but only if I have drawn a fourth land to activate the Snare or there is no need to have mana open for the Snare. Keep the Priest to pump the Pridemate when nessessary or to rebuild after a sweeper.

Still could differ depending on how the actual game progresses. This hand gives you several options, which in itself is already a very good thing. The first sequence is an agressive play, while the second is a more defensive one. Also, this is only as I would play it out with my casual playgroup in mind.