I like big stuff

Currently messing around with a big praxis build with pretty good success near the top of masters.

Still fine tuning and trying to make it more consistent. The nutty combo is Praxis Adept with Gemblazer Cannon, if you are on the play and can play turn 1 praxis adept and throw a gemblazer cannon on it turn 2, you can swing in and play another 3 drop, then on turn 3 the adept will be swinging in for 6 and giving you up to 6 additional power if it hits.

The main gameplan though is just play lots of big stuff and draw lots of cards. Javan, the Steel Crest, Auralian Supplier, Moonstone Vanguard, Grodov's Stranger, and Touvon, Skybreak Giant are all draw engines, plus you have Kairos, Grand Champion, and Binding Agreement in the market to refill your hand.

Lumen Reclaimer is the tech card for void decks and can often be enough to help you win those games. There are plenty of potential other good big things you can feel free to substitute in which are very good in this list, for example Sandstorm Titan, so feel free to adjust to your liking.