With these tools and a bit of practice, even the most inexperienced, mathematically-averse among us can quickly answer essentially any deck-building question
In an aggressive deck, this is likely to be more than enough to kill them off - and that's not accounting for any extra creatures you may have, any ramping you've done or spare mana you've created
Shivan Dragon was so popular upon release that it was included in more than 20 subsequent sets, but the original Limited Edition release is the most sought after version, by far
As mentioned, the deck ramps very well, and 35 of the 40 creatures are dinosaurs
Notably, Senu doesn't care how it gets exiled, and with the vigilance keyword, you'll almost always be able to tap Senu to exile itself for a bit of life gain and to scry your library
*If purchased together with a booster box, it will be free