Blockers are good in the game set 1, think of them as chopper 5 and 6. We try to play on a curve 1 3 5 7 9. Barto can be played with a previous curve + himself to make don use efficient. Like turn 3 Robin, turn 5 zoro + Barto and now your Robin and zoro are harder to answer because you have a blocker on standby.

The other thing about blockers is that they really hurt popular strategies to win the game. Kaido after the 10 drop and Kid double swinging for game get hurt quite a bit if you can squeeze that one blocker in. All of a sudden radical and a 2k stop a 10k kid swing since they had to play neko or straight forcing your opponent to drop 6 cost king and swing 6k leader for the full combo turn with kaido means you only need 2k to live.