Dudes... Necrovalley will never come to duel links because such card is even considered as "Broken" in the actual TCG.
The only way Necrovalley could be played in duel links is as a skill.
"From the 5th turn and onwards you can play Necrovalley in the field". - Something like that.
If it was broken in TCG then why it is unlimited (can play at 3 copies) and nobody plays it?
Sure it's gonna be really strong in DL, but your claim for TCG isn't exactly right either. The only "broken" thing about Necrovalley in TCG is its text, took them SEVEN errata to explain clearly what the hell the card actually does.
how come you people really struggle to understand a card description so much, and I mean SOOOO MUCH?. You need to be really stupid if you cannot understand them. Some of you even need an explanation about cards that do not target but send monsters from field to GY. The other day I read some random guy claiming that titan showdown was bugged and trying to get away with it. Jeez