I know this post is quite late, but I tried this only yesterday and it works wonderfully!
The thing is to go to the seasonal event (irresistible attraction) with your 4p cards, and try to take 4p cards that are 2 or 3 power.
Some cards that worked amazing:
Wolf pack – take away an opponent’s 4 power card, which will be difficult to get back
Ofieri merchant – you may get lucky and get some golds with it! An extremely fun card to play with as well
Also, anything with damage. I tried two matches on different accounts, one for scoiatael and another for monsters. Both wins at the first try. But I feel like scoiatael one was much stronger.
Here are some cards that help immensely:
Oakcritters – you get 4 power that’s difficult to steal
Scoiatael neophyte – for the same reason
Elven wardancer – doesn’t need to be boosted, amazing for stealing 4’s
Vrihedd officer – for stealing 5’s
Dol blathanna bowman – also great for stealing with some flexibility
Dol blathanna bomber – bit random, but can work
Leader ability – precision strike (for obvious reasons)
And of course brokilon sentinels to go with the leader ability that you’ll mulligan because they’ll appear anyway
I hope this helps haha
Source: https://www.reddit.com/r/gwent/comments/m0b95d/how_to_complete_a_poor_mans_gwent_while_this/