It's a good thing Nat can handle ghosts, as Tony wouldn't have been too thrilled about trying to divide his attention between a bear and a tiger. The bear's a big enough threat, but perhaps he can chase it off and won't have to bring the big ugly sword into play.

But then the tiger moves, Tony's eyes follow instinctively but just a hair too late. "Fe!" He's fallen, and in the moment of distraction is when a massive and powerful bear paw slams him back, leaving a bloody trail of claw marks across his chest in its wake. He hits the ground hard and skids, but bounces up again almost immediately. Adrenaline pumping and that battle lust now rise to the surface eagerly, and he he bellows a feral roar at the animals challenging them to come and play.

If he can't guard them directly, perhaps he can play decoy long enough for either Nat to calm them down again or the two to get away.