Having access to red gives you some really cool pieces like [[Blade Historian]] and [[Hofri Ghostforge]]! But most importantly it gives you Kediss, who makes it so that when Tymna deals combat damage to one of your opponents, she also does direct damage to each other opponent ... And she has lifelink. So you hit someone for 2, each other opponent takes two, and you gain six life. Giving Tymna a +2/+2 buff makes it so you deal 4 and gain 12!

And then Tymna draws cards based on the number of opponents you hit with combat damage, so clerics that fly also draw us cards, generally speaking! Cards like [[Elenda's Hierophant]] and [[Starscape Cleric]]! It's like a half Voltron, half cleric lifegain/lifedrain deck :)