SMITE

Currently works on minions, but will probably be patched soon. Simply line up a pack of minions in whatever mode you're in the mood to play and, while in Assault Stance, use Tyr's first ability to push them back and knock them into the air at the end, immediately follow that with his second ability to swat them backwards.

This will probably be easier at the beginning of a match when you're not powerful enough to kill the minions during the charge.

No longer works on minions, you'll need to catch a group of 3 players. This is easily boosted but if you're determined to get it without boosting, arena is definitely the way to go. You can hope you get lucky and catch 3 enemies in the center or you can slip around the back of the enemy group as they're working on the buff camps at the beginning of the match.

"As Tyr, use Power Cleave and Fearless together to juggle three or more enemy Gods at once".

Fearless is Tyr's first ability, and Power Cleave is his second. To juggle an enemy, you must be in his Assault Stance (the red one) to get the hit up effect on his 1. Getting three enemies to group up is fairly straight forward, especially in modes like arena and assault. Using blink will help you position yourself and take them by surprise. Dash at them with the 1, then at the end of the chain use the 2 to knock them up at the end. If you've timed it right and got all 3 people, the achievement should pop.