I know right. Personally for me Irou is essential because he can negate flip effects and has 1900 atk assuming your using Field of Warriors skill. His effect can snowball you since its pure beat down. I use 3 Irou and 2 Zanji with 2 Youchi and 2 Hand with Shogun and Chancellor and have been winning most of my games.
In the current meta, barely anyone minus Burn Decks play face down. There are enough competitive monsters to play face up with effects pre built (or require a Gemini normal summon).
Irou needs another Six Sam to activate that effect as well. HAND does a more effective job since she can destroy pretty much any monster without triggering most effects. HAND plus Half Counter and Copy Knight=GG