Some of the most iconic are cards like Forgotten Ancient, Managorger Hydra, Genesis Hydra, and Mikaeus, the Lunarch
During the early turns, you can easily cycle it for 1 mana to replace itself, but if you draw it late in the game, its a great way to win the card advantage battle
Bad-Anon is the villains support group in the first Wreck-It Ralph movie, and their affirmation, Theres No One Id Rather Be Than Me, provides the ability for the Bad-Anon Location card in the Shimmering Skies set
Recently I talked about my Top 5 Clones in multiplayer formats like Commander here
You get the first land from your deck into play, and the rest go into your graveyard as fodder for everything from threshold to reanimation
In addition, any number of artifact synergies will play nice with the Myr, including Darksteel Forge and Unwinding Clock