[fixed]Dragon Mask eot issue+AI no get ability

[Aswan jaguar]

Describe the Bug:
1- Dragon Mask has backslided: only requires mana to activate it's ability. fixed
previous fix: viewtopic.php?f=110&t=11027&p=124027&hilit=dragon+mask#p145554
2- If the ability is activated at manalinks eot creature is returned to hand at that turns end.
3- AI doesn't get that Dragon Mask will grant to creature +2/+2 when deciding to attack or to defend.(Don't get confused with the fact that AI will use if AI has attacked or blocked).
Which card did behave improperly?
Dragon Mask

Which update are you using? (date, name)Which type? (duel, gauntlet, sealed deck)
Manalink 2016/08/27: Eldritch Moon v2, duel

What exactly should be the correct behavior/interaction?
1- Dragon Mask requires mana to activate it's ability.
2- If the ability is activated at manalinks eot creature is returned to hand at the beginning of the following turn’s end step.
Note that only the "Return it to its owner's hand at the beginning of the next end step" part has to do that not the "Target creature you control gets +2/+2 until end of turn" which lasts until eot.
3- AI gets that Dragon Mask will grant to creature +2/+2 when calculating/deciding to attack or to defend.

Are any other cards possibly affected by this bug?
-

[Aswan jaguar]

Fixed activation cost & that it triggered regeneration effects in c5c5d12.

[Aswan jaguar]

AI issue was fixed in commit fd5e820. For the next eot issue this is also mentioned in viewtopic.php?f=86&t=20348&p=230181&hilit=Dragon+Mask#p230181 so I am closing this.