Chainers Edict Making a player sacrifice a creature can be a great strategy to navigate tricky keywords, and flashback allows you to use Chainer's Edict twice
The Time Spiral block had a nostalgia theme, with Time Spiral looking back to the past
Endless Punishment Endless Punishment is a group slug commander, which is to say it slows down and crushes the table equally
Niv-Mizzet, Dracogenius and Niv-Mizzet, the Firemind The great thing about Niv-Mizzet's two incarnations is that in each pass, you get a sizeable flying Dragon that also draws you a throng of cards while also having a built-in combo engine to build around
Proxies solve a budget and accessibility problem
If you decide to swing wide or your opponent believes they can run over your little faeries, flash in Scion of Oona and watch the board dynamic change rapidly