Please refer to the table below for a better understanding of how card rarities match each other across English and Japanese
Here are the most effective ways to play around discard strategies: Draw a bunch of cards consistently, which is unfortunately something that some colors struggle to do (blue card draw and green card draw tend to be the best)
Rather, it's a clone spell
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
If you attack with a nontoken creature, you get to create a 1/1 token of one of those creatures
They will be sitting on a winning lottery ticket, but where will they choose to cash it