New rules for "blood moon" cards

[Issue from reddit](https://www.reddit.com/r/XMage/comments/7fiwec/blood_moon_rules/).

Is xMage work correct with new rule changes for "blood moon" cards? You can read about changes [on that page](https://magic.wizards.com/en/articles/archive/news/ixalan-comprehensive-rules-changes-2017-09-28) (search by "614.12, 614.16d").

> So this rule's changing. Now, to determine what replacement effects will apply to a permanent entering the battlefield, you look at continuous effects that modify that permanent's characteristics coming from the permanent itself along with those that already exist and will affect that permanent. Dimir Aqueduct enters the battlefield untapped under Blood Moon. Humility causes creatures with modular to enter without their +1/+1 counters. Metallic Mimic can distribute +1/+1 counters happily to your army of Ferrets under Arcane Adaptation.

Added later:

Found interesting and detailed article about look ahead and replacement effects. It’s using special and isolated “staging zone” for each of the simultaneous entering creature. Can be a good instruction to implement look ahead by etb in game simulation (simulation is some copy of the whole game and allow to make any things with change a real game — it’s same as staging zone from an article).
https://outsidetheasylum.blog/replacement-effect-lookahead/