Below is another plot using the same deck, but using a slightly more sophisticated agent, which mulligans if it has less than three lands, up to a minimum hand size of five, and prioritizes cards to play as follows: 1) untapped land if it would enable playing other cards, 2) ramp, 3) card draw, and 4) randomly picking a card from among the remaining playable cards
As Tarkir draft settled, there ended up being two basic strategies: play red-white aggro or play a green-based four- or five-color strategy
You can use the delve ability to reduce the cost of Tasigurs Commander Tax as well, keeping you in the game longer
Red-Eyes Dark Dragoon also has a quick effect that lets you negate any card effect, destroy that card, and gain 1000 ATK
Let's get this thing started
Enchantment Speaker of the Heavens Vigilance, lifelink (Attacking doesn't cause this creature to tap