At any point outside a battle, you can swap between the three difficulty settings (Squire, Knight, and Tactician), which respectively map to traditional easy, medium, and hard settings
You may cast the creature later from exile.) An adventurer card is a creature card in every zone except the stack, as well as while on the stack if not cast as an Adventure
MTG Nexus Mtgnexus.com is your best bet for creating custom MTG proxies
In the event you miss a land drop one turn, burn one of your Traverses to make sure you dont skip a beat
All these cards can be summoned directly from hand if you control no monsters and they all allow to search for a "Kashtira" monster or spell or trap respectively
Artifact synergy is one of the cleanest and most effective ways to run away with a Commander game, and Ravenous Robots is another entry in that tried and true tradition