Since you're in Jund colors, you have access to a few more spells and creatures that let you increase the power of your creatures when you attack, letting you put your opponents on the ropes
This card is the foundation of a GW go-wide ally strategy in Standard, and its also sees play in Commander when allies are involved
If you manage to blink the main creature, it gets silly
Whats more is that Kit Cloudkicker, Navigator has the Ward keyword too, meaning that it cannot be targeted by opponents unless through a challenge: thereby giving it even more longevity and thus even more opportunities to quest for three lore a turn
Tashas Hideous Laughter Are your Commander tables occupied by decks with low curves made up of cheap spells
Any power- or toughness-setting effects that start to apply after Kenrith's Transformation becomes attached to a creature will overwrite this effect