Before getting stuck in: Ocean life has a longer and richer evolutionary history because life came on land only after it had existed in the oceans for some considerable time. So if you want examples of aggressive and richly evolved animals, and plants for that matter, look at aquatic life.
There are several card games on the market where you have a variety of potential cards to play to combat potential strategies by an opponent. Some are reminiscent of rock-paper-scissors. (Or rock-paper-scissors-lizard-Spock if you prefer.) For each potentially lethal strategy there are a variety of potential counters, some of which will be successful, others will be somewhat successful and somewhat failing, and others still that will be total flops.
Consider an animal that has to deal with a predator. They could evolve to be very perceptive and very agile and quick. Better eyes, ears, nose, and better legs. That gets you a gazelle or something like that. Or they could form herds and face down predators in groups. That gets you things like buffalo with horns and hooves that, in a group, even the hungriest lion will be concerned with. Or they can learn to hide, possibly by taking to the trees. That might get you monkeys. Or it might get you birds. Or it might get you burrowing animals. Or it might get you camouflage or chameleons. Or, it might get you something like an ankylosaurus, with spiked armor and a big knobby mace-like tail for combat. Or it might get you porcupines or skunks. Or it might get you things like tree frogs that produce poison in their bodies or skin, so that predators that eat them are poisoned. Or you could get animals that eat stuff that makes them bad meals. Or it might get you mimics that look like skunks, or some venomous animal.
Or they could tolerate being predated to some extent, and simply be incredibly prolific at producing babies quickly. Such as rabbits.
Or they could mix-and-match. Agile and sneaky. Prolific and poisonous. And so on.
From the predator's point of view, each potential strategy of its prey must be countered to some extent. The big cats get better senses, at least smell and hearing. Birds of prey often have amazing vision. Some predators become very agile and very fast. Some predators develop the ability to tolerate some poison in their diets. Some predators group up and counter strategies of their prey, such as waiting spaced strategically in a hunting area, so one predator only has to chase the target for a brief time, passing it to the next.
If the prey learn to burrow, the predator learns to dig them out.
Each of these schemes is followed by some creatures currently or recently living on Earth.
The thing is though. Each of these strategies requires time, energy, and resources. They have opportunity costs as well as direct costs. So it is not the usual thing to see a super predator who can do all of these things at top pitch. It's an arms race, but there are strong constraints on things like energy use. If your nearest neighbor can get dinner with 5 cm talons, and you have 8 cm talons, maybe your nearest neighbor will out compete you. If you have armor and poison and huge eyes and ears and so on, maybe your relative with less armor can survive with 10% fewer hours of grazing. And so spends less time vulnerable with his head down in the undergrowth looking for tender shoots.
To give a really easy to understand example: A burrowing prey animal will get caught by a predator that can dig. So it must adjust and burrow a little deeper. After which the predator must dig a little deeper. And so on. Eventually the energy for one or the other creature to do the digging will exceed the evolutionary benefit. If it takes a bear more energy to dig out a gopher than the calories he gets from the gopher, it stops making sense to dig out those gophers. If the gopher spends so much energy digging he has no energy left to make baby gophers, it stops making sense. So when this limit is reached, one or the other animal will either die out or learn some new strategy to survive. The bear switches to some other food source, or the gopher learns to hide amid rocks, or some such dodge.
So arms races such as this will tend to stop advancing and start radiating. Instead of piling on more and more speed and agility, the gazelle will tend to find some other plan. Such as camouflage. And so on.
In other words, things will be hugely varied and complicated with just about every possible strategy being tried at least to some extent. But it is unlikely that any creature will pile up extremes of multiple features.