Cupcake

Trait Name. engulf 

if a creature makes physical contact with the  ooze  they need to make a dex save of 15 if they fail they get engulfed and get poisend for 4d4 poisen damage for each turn they are engulfed. if they are engulfed the creature needs to make a dex save of 13 to get out. 

if the cupcake gets 20 damage in 1 round it spits al creatures out  

Action Name. slam 

Action Melee Attack. Melee  Attack: +9 to hit, reach 10 ft., 3 target. Hit: 4 (4d8 + 4) [Bludgeoning] damage. if slam succesfull the creauture gets engulfed ( look at engulfed trait for damage)

Action Name. tentacle slap 

Action Ranged Attack. rangee Attack: +6 to hit, reach 40ft, 1 target. Hit: 8(3d6+6) [bludgeoning] damage.

Bonus Action Name. Enter the description for how bonus actions work for your monster here.

Reaction Name. Enter the description for your action.

Legendary Action Name remnant assemble cost: 1 turns

it can assemble armor for 1 turn and has to wait 1 turn to use it again. 

Mythic Action Name. Enter the description for how mythic actions work for your monster here.

Mythic Action Name (Costs # Actions). Enter the description for your mythic action.