An Almost Inseparable Trio

The idea with these card combinations is pretty straightforward. First, Water and Life Element should be part of the playable elements, and melee units above 4 mana cost should be available. Then use Elias Max Pruitt for the Archon to let us summon units from both Life Element, which Silverblade Fighter belongs to, and Water Element, which Commander Slade belongs to. As for the positioning, Silverblade Fighter goes in the first position, while Commander Slade will be next in it, so much like this.

Usually, we do not place another melee unit in the second position, unless they have Reach or Charge ability, but with the Flank ability from Silverblade Fighter, Commander Slade now gets the Reach ability. Not to mention, Silverblade Fighter also has the Void Armor ability that prevents magic units from directly damaging its health, and Protect, which gives all units +2 armor. Add that to its 7 base armor and the +1 armor that Elias Max Pruitt gives, then it will have a total of 10 armor, which will allow it to sustain some decent amount of damage before it is defeated.

Meanwhile, we will use the Armored Strike and Pierce ability tactics from Elias max Pruitt and assign it to Commander Slade, so that it can not only attack with its melee damage but also attack using its armor, which were both boosted by Elias max Pruitt and Silverblade Fighter to 6 melee damage and 10 Armored Strike damage. Commander Slade is really fast too, so it attacks quite early in the round, and barely misses its attacks.

Battle 2:

This time, while both teams can only use common and rare units in battle, I provided lots of support cards to keep my combo at play with Grimbardun Smith and Anachron Bolter to sustain the armor with Repair, Anasth Soothsayer for the Tank Heal, and Janni Rebel for the Inspire. And while the battle took a while, the only unit that was defeated in my team was Silverblade Fighter.