Whats more is that players can play Kida, Royal Warrior exerted - meaning that they can immediately put her in front of whatever baby character they want protecting, stopping their opponent from banishing them on their next turn and keeping them alive for that little bit longer
If youre looking to save some money, the Commander 2018 variant is your best bet
Watchwolf is a 3/3 so if the Intervention resolves, you put a +1/+1 counter on it and now its a 4/4
Whenever you cast a planeswalker spell, you gain 1 life
Other cards are still worth mentioning that almost do the job, but they require another color or can search for any other than white mana
Otherwise, you can just put it on any 0/2, 1/1, or other weak creature, to turn them into an aggressive powerhouse