Totem of the Frog

Those under the guidance of the frog totem are guardians of all amphibian lifeforms.

Is Frog

Starting at 3rd level your long jump and high jump is multiplied by your proficiency modifier +1.

At 3rd level you gaing a swimming speed equal to your walking speed and you can hold your breath for twice as long, three times as long at level 14.

Frog's fury

At 6th level you become immune to fall damage.

At 6th level if you jump out of a creature's attack range and the creature chooses to make an opportunity attack against you, you can use your reaction to make a weapon attack against the creature that attacked you . You and the creature roll to attack at the same time and if your roll is higher then that of the creature's, the creature misses automatically. If the creature rolls higher than you, you can still hit the creature as normal.

Amphibian's alacrity

At 10th level your acrobatics skill is based on strength (Str) rather than dexterity (Dex). 

At 10th level while you are raging, you gain +1 to ac every time you leave a hostile creature's (that you have attacked this turn) attack range, or if you kill a hostile creature whith no more than one attack, until the start of your next turn.

Terminal Velocity

You can (recharging on a Long Rest) jump five times your high jump straight up into the air, consuming your action, bonus action, reaction and all your movement. On your next turn you will land on a point that you choose within 120ft of where you jumped, every creature in a 5th redius if where you land haft to make a DC 13+Str Dex saving throw or take 1d10 bludgeoning damage for every 10 feet you fell or half as mutch damage on a save (rounded down), increased to 10ft radius at level 18. If you use this ability and there is a roof above you such as the roof of a cave, you take the damage you otherwise would have done and get knocked to the floor gaining the prone condition and you loose your turn. depending on the type of roof your DM can dicide if you can simply  jump through the roof rather than taking damage.