This is pretty hard to make work, even in a format with an artifact archetype
Overall, unless you're playing a very specific theme or casual deck, Kobolds of Kher Keep Token may not see much play in competitive settings
9 Galadriel, Light Of Valinor All Shall Love Me And Despair
Similarly, if the main disadvantage of an effect is your opponent playing around it, in an open-decklist tournament, playing only one can be correct to force opponents to respect it with the minimum amount of investment
3/3 Illustrated by Chase Stone Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
Flying, lifelink, and a 3/4 body are all already powerful attributes on their own, but the added value that her Healing Tears ability provides makes Celestine especially deadly