Cards that aren't working properly

[xxxfir3foxxx]

Propaganda- opponents must pay 2 for each attacking creature, yet they attack without paying the cost.
Lethal Vapors- Any player can pay 0 then skip their next turn to destroy this enchantment. However, when a player does, their turn isn't skipped.
Crested Sunmare- On any turn that the owner gains life, they create a 5/5 Horse token at the end step. Except, they create a 5/5 Horse token regardless if they had gained any life or not.

[warmasta]

kindred boon- do not have the option to pay the cost, clicking on the enchantment does nothing