Dawnbringer Cleric Now 1/4 (from 1/3) Circuit Mender Changed "you gain 2 life" to "you gain 3 life." Haywire Mite Changed "you gain 2 life" to "you gain 3 life." Now 1/2 (from 1/1) Hinterland Chef Now 3/4 (from 3/3) Knockout Blow Changed "Knockout Blow deals 4 damage to attacking or blocking creature" to "Destroy target tapped creature." Lonely End Changed "you gain 2 life" to "you gain 3 life." Look for these changes with the April 4 release
You can cast it from the top of your library with Nalia de'Arnise, and you get double triggers from Rin and Seri, Inseparable when you cast it
That would be a feat in itself
Sora and Dennis both have a lot of humanizing traits, with the main difference being that one of them never got the chance to actually do much evil before The Power of Friendship saved him, and the other couldn't live with his own guilt and wound up Driven to Suicide
Shuzou has a fiery background, while Himika has an icy one fitting their personalities
You can sometimes "splash" a third, playing two colors as your base and a couple powerful cards or additional costs of another color, but I'd really focus on the two colors you want here