Chrono-Cannon-(Direct Damage)

Atlas' weapon is a unique one in paladins. On a single click the arm cannon will fire 15 rounds in a very broad direction. This charge time is great to use when in close combat with someone constantly moving or attempting to dodge. The weapon can also be charge to progressively get more accurate but also fire less rounds. Something to bear in mind about this weapon is that at full charge the cannon automatically fires so try and have you aim set before you charge completely. The full charge time is 1.5s and depending on how long you hold it it fires 15, 10 ,5 or 1 shot.

Setback

Setback is Atlas' right-click ability and allows you to fire a bulk of energy towards one enemy and send them back to the position and lowest health they were at 4 seconds ago. This can become especially useful if you are in combat against an enemy champion and they health themselves back to maximum health, you can then wait two seconds or so and revert them back to the vulnerable position. Although also bear in mind it is 4 seconds so if a champion charges in and you take off loads of their health do not right click as you will likely just revert them back to the position before they charged in and give them a second chance. This will likely result in your team not being very happy with you. It also has a base 12 second cool-down so use it sparingly

Stasis Field

Stasis Field is Atlas' default q ability that allows him to create a large barrier that blocks all ranged damage for 5s. It only works in a single direction and cannot be moved once it has been placed down. However it does work extremely well in choke points where the enemy have to attack in one direction. It also has a very long cool-down of base 14 seconds though which makes it useful when trying to capture the point or push immediately but serves little purpose maintaining your team's control of the point.

Second Chance

Second chance is by far Atlas' most useful ability as it allows you to go back 5 seconds into the past and your health is also restored to the highest value it was in that period. This ability allows Atlas some self-sustainability when the support of the team is down. It is his default f ability and has a cool-down of 18 seconds base which means that once you've used you may not want to rush straight back in. It works especially well when you are put into a disadvantaged situation (either lower health then the enemy or a mismatch in the numbers of your enemy) when you can restore your health to full and continue fighting or just escape the situation altogether.

Exile-Ultimate

Exile is Atlas' ultimate ability and allows him to fire three shots over 4 seconds at enemies. If your shots hit then the targets will be put into a banished state where they cannot be interacted by with their own team or yours. Due to this stipulation you may wish to do it to the higher health enemies and whilst they are banished deal with the lower health ones. It can also be especially useful in situations where the capture point is being contested heavily by both teams and you can quickly give your team the upper hand in the battle. The main downside of this ultimate is the accuracy and time limit. If you want to get the maximal use out of it you have to hit three of three shots on three different moving targets in the space of three seconds. This ultimate may take a bit of practice to get used to but once you have mastered it, it can be a real game-changer. Also the shot does have slight auto aim to give you a hand hitting all the shots. Something to be kept in mind when using it on smaller groups of enemies is that it can be cancelled by pressing the ultimate button again and the remaining ultimate charge will not be consumed if it is cancelled. There is one big counter to this ultimate if you really want to do it. The duration of the banish can be decreased with resilience quite heavily but the minimum duration is 1 second so you can still get the satisfaction of hitting people with the blast even if they are only banished for that 1 second.