For example, lets say I cast [c]Doomskar[/c], which destroys all creatures
There are a lot of obvious all-stars for this format that are similar to ones in the standard format, like the original dual lands, Sol Ring, City of Brass, Mana Crypt, Lightning Bolt, Counterspell, Swords to Plowshares, Regrowth, Demonic Tutor, Wheel of Fortune, Sylvan Library, Land Tax, Strip Mine and loads more good stuff
Consecrated Sphinx Welcome to our highest dork, permanent and 2nd highest scoring card overall
More importantly, these cards dont exile themselves upon resolution like modern extra turn spells do, which means all the Regrowth effects and Snapcaster Mage variants you can justify stuffing in your deck become much stronger