So, the deck revolves around a mix between direct and indirect ways to damage your target's life points.... I like it.
The problem with a deck like this is that this requires you to have Ionia up and have at least 1-2 monsters on your side of the field to share each other's benefits from the spell card and to maximize their damage outputs. Zed also seems too demanding to summon for 2 reasons:
- It's level 12, requiring you to have this spell card and 3 level 4 monsters or Yasuo + 1 level 4 monster.
- As much as that I like the effect of the card, the attack points of Zed is underwhelming if you ask me.
However, I do like that Zed can't be affected by trap cards so that things like Mirror Force don't screw him over.
Yasuo's effect is really good though with things like Double Attack so that you don't effectively need 2 - 3 turns for you to activate and make full use of it.
I also like Rhaast/Shadow Assassin Kayn's effects. However, they require Kayn to not be destroyed and to successfully attack for 5 turns (or 3 with either scythe equipped) which can be easily mitigated with a card like Safe Zone.
Kennen is basically a mix between Dark Hole and Exiled Force. That's the one thing I noticed with that, and it's not a bad thing. It actually is a good thing if you ask me.
My overall take on the deck: 8/10
This deck is.... actually usable if you ask me. All the cards sync well and it's weakness of relying on monsters to be in the field most of the time and not be sent to the graveyard can be mitigated by cards like "TWRA" and others like that.
Edit: I wished you put in more aspect to Yasuo's W for one of its card effects. The one I can suggest to you is like this.:
- When your opponent declares an attack, you can tribute this card, negate the attack and end the battle phase. During your 2nd Standby Phase, you can special summon this card from your graveyard, but it cannot attack this turn.