I hope they will bring him back in other spender event. I couldnt collect enough diamonds for him. Still 2k short from it, really slow progress. Currently he is the only hero who worth 12k for me. Or if they finally put him in a diamond chest then I could get him from jades, is okay aswell.
Totally fine at 3 star. Able to destroy teams alone once he start his cycle. Very fast energy gain he has. They should release heroes in a normal way not for ridicoulous amount of gold or diamonds. I see 0 reason why should I get more stars for Sylphi. Stars needed mostly for Arena. Sylphi def8nitely not an arena hero right now where Vulkos aw Tanyas and Morfirs running around.