You dont see the same top-end with cards like Avenger of Zendikar and Craterhoof Behemoth that you would in Legacy or Vintage Cube here, but theres no shortage of powerful things to do once you can generate a mana advantage
This is ignoring the plus one ability thats basically an Impulse which will bury opponents that are behind or at parity over the long run
9 Chrome Host Seedshark Chrome Host Seedshark depicts a Phyrexian shark that can fly and create Incubator tokens with astonishing speed
If you need a no-frills draw engine and don't care for anything else, Mind's Eye is a very efficient option
Its certainly not for beginners it leverages all five colors to summon huge elementals to then sacrifice and duplicate them to capitalize on enter-the-battle (ETB) triggers $35 for a deck this good is a bonafide steal
If she has even two counters on her when she dies or is put into exile, you get to Vindicate something (okay, more like Maelstrom Pulse), which is pretty cool