Improvements + Cards To Drop Trade for more of the good cards you already have
For the Starter card Lightning [19-138S], one of the cards will be a Full Art Premium Foil card
is a Split Second piece of removal that can take care of any creature, but can occasionally deal with multiple creatures without being responded to
If your deck does not have access to green, you might have to get more creative by using cards like Tithe, Pilgrims Eye, or even Demonic Tutor to put lands into your hand, cards like Mana Geyser, High Tide, or Caged Sun to get a big payoff, or mana rocks like Arcane Signet, Coalition Relic, and the Ravnica Signet cycle (Boros Signet, Izzet Signet, etc.) to speed things along at the risk of seeing them destroyed later
He is weaker than the former, a 2 in strength to Simbas 4, but tougher than the latter, a 4 in willpower to Calhouns 2