Use the effect of Darkstorm Dragon to clear all spell/trap cards on the field by sending one of your face up spell/trap card to the graveyard. An excellent combo for this is equipping Supervise to Darkstorm Dragon to immediately gain his card effect, then send Supervise to the graveyard with Darkstorm Dragon's effect to destroy all spell/trap cards on the field, this would also allow you to special summon a normal monster from the graveyard by the effect of Supervise. Use this opportunity to special summon another Darkstorm Dragon.
Other useful cards
For versatile cards that can be used in any deck, check the link below.
As you can see this deck has no draw power or search power, so we rely on duel standby to give us the hand we need. This skill also gives us cards we can send to the grave with the effects of Vanguard of the Dragon and Wonder Balloons. Here's where this deck shines, because what it lacks in draw power, it makes up for by reusing cards in the graveyard. Most cards in this deck have effects that activates when sent to the grave or return cards from the grave.
If Darkstorm Dragon is in your hand, use Kidmodo Dragon as the cost for activating card effects. Discarding Kidmodo Dragon would trigger it's effect and allow you to special summon Darkstorm Dragon. But keep in mind that you cannot conduct your battle phase, nor can you special summon monsters except dragon-type monsters the turn you activate this effect.
This deck is extremely fun, basically rip out Raptinus, use butterfly to bring back the Darkstorm and wreck. Then the field spell can five you back butterfly in case Darkstorm is destroyed. It could still benefit from an extra Darkstorm or large Gemini in general.
Hi guys, made KOG with a Gemini dragon deck (you can check the KOG page). Last Gamble is the optimal skill for dumping Darkstrom and going for game. Vanguard is an alright idea, but I think the deck really needs Knight Day Grepher and Heavy Flame to be competitive. Running non-Geminis with Supervise is just asking for bricks, with Restart it might not be too bad.