cards like eternal witness mtg 1x MP Fifth Dawn Magic When Eternal Witness enters the battlefield Altered Link Eternal Witness :

2 Parallel Lives Parallel Lives is one of the most effective cards for token-themed decks in Magic: The Gathering

After a short time of research on the internet, I found out that it was mostly used as a commander in no-creature-decks to generate combinations of the same in combination with the Isochron Scepter and the Proteus Staff

Then you can exile a graveyard and gain a bunch of life, ramp out two lands of any type not just basics tapped, make a pair of 2/2 Bear tokens, or toss a pair of counters on all of your stuff for the going wide, and with the Bears as a default that's two 4/4s for six mana on a naked board

This isnt a website that actually holds your decklists and that you can build decks on, but it is the ultimate resource for building Commanders decks