There are plenty of combinations you can get in this format
That activated ability is sweet, but you cant just cast your fifth Templar Knight and then activate the ability unless you can give that Knight haste, so there are some hoops to jump through
Likewise, rather than just inflicting 300 damage for each monster banished, this version of Utopia Prime inflicted their full attack as damage, making it far more formidable than the printed version
Well Rested gives a creature two +1/+1 counters and draws you a card when it gets untapped
Always netting you one permanent, this creature synergizes in incredible fashion with artifacts that provide benefits when they leave the battlefield such as Ichor Wellspring and artifacts that can recover other artifacts from the graveyard such as Myr Retriever
6 Prophet Of Kruphix Two cards that see a great deal of play in the Commander format are Vedalken Orrery that allows its controller to cast all of their spells at instant speed, and Seedborn Muse, a creature that untaps each of its controllers permanents during each other player's upkeep
