In practice, this means waiting a little until you have lands in play and a game plan, and it means building your deck with recursion in mind
It only takes three hits to a player to knock them out through infect damage with Skithryx, fewer if you have a way to pump up his power by even one point
These are a great way to smooth your mana, which is vital when running decks with three colours
But sneak an attack in with these guys and watch out for cards that are way more busted than a 7/7 with trample, think along the lines of Bloodthirster, Worldspine Wurm, or Blightsteel Colossus
I would not recommend playing this as a full Voltron deck
Take a look at Dark type-shifted Charizard and other Pokmon from upcoming Obsidian Flame card set A fiery Eiscue is among the odd Tera-type cards