They are great to play with your friends or play a casual game here and there of Magic the Gathering, they are fine
For instance, the first Radical Idea can provide some real smoothing and a little extra selection whenever theres a convenient spot to spend a little extra mana
Many of you may already be equating these terms and questions to the same concept: Money
If the game stretches out, you might even be able to drop the Cordial Vampire and then burst-kill someone out of nowhere, thanks to how well it plays with Kalastria Highborn and Blood Artist when fueled by zero-mana sacrifice outlets such as Viscera Seer, Stromkirk Condemned, and Bloodthrone Vampire
Yesterday the new Disney Lorcana Set 2 Name was leaked, and this may have prevoked Disney to reveal their all new Rise of the Floodborn announcement, showcasing new cards, and a limited edition Disney100 set that focuses on super rare alt art cards