so first: Why will it be unplayable in a day? I started two days ago, so please excuse my lack of knowledge
. So I should change strategies? What is good for the Scioa'tael?
I am sorry, didn't mean to discourage you. I am an ST main with 3500+ wins with ST and 210 games this season, playing ST of course. In a day, a new expansion drops, called Black Sun which introduces powerful cards called Scenarios which can only be answered by either Heatwave or Beatification (both being neutral cards). If you don't answer these scenarios, you are most likely going to lose, unless you also play a scenario (and the opponent doesn't remove it).
Since you are very new, you are probably playing in lower ranks in which you may not face these OP cards (BTW, never play casual games.. only play ranked which at least guarantees that you face players with your similar skill/deck level). The reason for my original post was, I have been trying Nature's gift for last few days and find very hard to win when facing certain decks. If you face Skellige self wound or alchemy, it is almost a guarantee that you will lose. There are plenty of other decks to which you lose on the spot when the game starts if you don't have Heatwave or some kind of tall punish.
Now, coming to your deck, I agree with
@EduFerraz and his points. Basically, you have mixed two archetypes, harmony and nature's gift. Unlike other factions in which cards that support one archetypes can be used in others, in ST, they are all extremely anti synergetic. So, lose all harmony cards and add as many nature card as possible. Simlas is the saviour for ST and if you don't have him, your ST deck is instantly 50% weaker and you lose your chance to win (all my points are valid once you rank up.. at very low rank, any deck and win any deck).
This is currently the deck I build and using it.
Isengrim's Council guarantees Simlas or Zoltan.. Use Zoltan in R1 or R2 to tempo and survive and use Simlas in R3. There can be many other variations and my deck may not be the best one. But it is really good and sticks to the Nature Gift archetype. I know you won't have most of the cards and if you want to craft, for Nature's Gift and in General, this would be my preferred order:
Simlas,
Zoltan (general purpose tempo card),
Bountiful Harvest x 2(over cost junk card, but nature gift needs this)
Guardian may look junk/weak, but she has her use. With her on board, with Nature's Rebuke, you can reach 7 damage which is necessary in many cases.
Lose Circle of Life.. it is a pathetic card at 5P. Use it after it gets buffed to 4P in 2 years or so.
Dunca is a general purpose nice card