Even if Kaito's triggered ability triggers more than once in the same turn (perhaps because one or more attackers had first strike, multiple players were dealt combat damage by your creatures, or there were multiple combats), and you return an attacking creature to hand each time, you won't be able to activate Kaito's loyalty abilities more than twice that turn
The plane of Amonkhet forges warriors
Likely intended as some kind of test print
This allows you to pivot from an aggressive card-draw strategy to a purely defensive posture, shielding your most vital permanents from targeted removal
Its hard to attack through all their tokens, but Cryptolith Rite decks tend to be good at winning without needing to attack, and G/W Tokens isnt good at killing them or disrupting their engine, but its difficult to design a Cryptolith Rite deck thats actually good at winning a game against an opponent who can regularly kill all of their creatures with Archangel Avacyn, Tragic Arrogance, and Planar Outburst
As far as ways to power-down goes, simply choosing a sub-optimal Commander is a surefire way to reduce the potency of your deck