Zur the Enchanter and Rishadan Pawnshop on the battlefield.
Zur does not have summoning sickness and cannot be blocked and killed by an opponent.
({2} magic symbol) each turn available.
Steps
Declare Zur as an attacker.
Zur triggers, causing you to search your library for Stasis and put it onto the battlefield.
During the end step prior to your turn, activate Rishadan Pawnshop by paying ({2} magic symbol) and tapping it, shuffling Stasis into your library from the battlefield.