On average, you can expect these moves to deal halfway between their base and maximum damage
There are two recently printed common two cost sorceries in this genre that exile two for the next turn for cheap enough to play they are pretty pricey too (Wrenn's Resolve is sold out here and as high as 2 bucks on other sides, Reckless Impulse is also sold out here and tends to be closer to 2.50 on other sites) The only cheap is the uncommon from a limited Commander only set, Inspired Tinkering, also sold out but a cheaper 30 cents on other sites
The Economica is a simulation of the economic environment, for example the decline in the yen (Japanese currency) and sustainable economic growth
Gyarados ex's Rampaging Whirlpool deals 140 damage and only costs 3 Water Energy and 1 Colorless Energy
Further Upgrades If you make Kozilek, the Great Distortion your commander then I recommend adding a couple more mana rocks and then just a few Voltron pieces like Commander's Plate and Shadowspear to make commander damage strategy more potent
Shes relatively new to Dungeons & Dragons having started playing 5th edition several years ago