Platypus

Strategies
The Platypus has nearly the same stats as the Otter: it has more damage and the same Health, Deploy Time and Attack Time. The only reason to use the Otter over the Platypus is because their abilities, specially before the Platypus gets Energize. Once the Platypus gets to Level 7, the only reason to pick the Otter before the Platypus is because you want its Revive ability or because its level is higher.