The banner reads WELCOME TO OUR GENDER REVEAL PARTY and it hangs above the altar.
The creature erupts sidewise somehow, blooming into the world in violence, flames licking up to the banner until it flutters down in burning scraps as the party attendees applaud and bleed and sway.
M̢̟̖̩̳̦͞Y̷͍̻̕ ̨͈͍̗̼̳͓̗͇̭G̵͔̗͔͈̘̯̼͉͡E͏̻̪̠N̫D̸͡҉̭͈E̻͟R̛͠͏͔̻̩͔̖̜̦̣ ̸̳̹̀͝I̡̯͍̻̤̟͠S̕͟͏̦̮ ̦̹͕̗̫̣̗D̷̤͉̥̤̥E̛̻̼̯̪͕̯̳͉ͅA̰͎̕T҉͎̯͍̙H̜̪̱ͅ it bellows.
And then: there’s cake.