Where do Flesh Golems reside?

In the damp root tunnels of the Elder Tree

What are the Grim Reaper's abilities?

Starts with affliction, and gains oppress and piercing at higher levels; pretty useful card!

Who is the best summoner?

Tough one. Damn Yodin is probably the best; but my personal favourite is Selenia Sky!

And here's a picture for you: the mighty duck 😁!