Here's a little reference for my Tubby Prey Oshawott named Oscar. He used his weight and he much larger Scallop which is made from the shell of a Shiny Shellder as more of a Shield than a blade to . He gets incredibly flustered by his own weight and the weight of others when he gets called out on it, often blushing hard. Whilst he may have a desire to get into a belly or two he's quite the fighter about it pretty much often squirming and wriggling all the way down and for a good while after...with a few exceptions such at his trusted Snivy partner: Simon, other high ranking Guild Members like Sally or people he comes to trust over time.