Just for reference, a modal spell or ability is anything formatted with the word choose followed by bulleted options, and a number of modes indicated to be chosen
If you are a fan of Witcher and dont prefer the overall Hearthstone, and Magic The Gathering vibes, this is a good alternative
It also triggers combat damage, not attack, so you can't use it to get rid a blocker for your ground-bound troop
Koh, the Face Stealer Koh is one of the coolest designs in the set
You can also mix in blitz creatures or temporary tokens from abilities like myriad
For Commander, it gets stronger the higher the power level gets since youre more likely to encounter free spells like Force of Will and non-land mana acceleration