Suggested buffs for Taric?

Here are some things that I think Taric could use to be truely, TRUELY, OUTRAGEOUS. I feel like his heal and 1 CC is underwhelming.

1. His Q's scaling should be 7% of his total HP, not 5%/7% of his bonus HP. Also, reduce all mana costs by 10. Possibly increase cooldown times by 1-2 seconds.

2. Add a 10-20%-30% for 1/1.25/1.5/1.75/2 slow on his W, depending on how close targets are next to him. Using his W's active doesn't feel like it's doing enough.

3. Make his E able to be used twice in a row. The first cast should have 660 range (35 more than it currently has). The stun lasts for 2 seconds and costs 75 mana like his current one. His second cast within the next 5 seconds, before his cooldown starts, has 550 range and costs double the mana to cast, with only a 1 second stun.

4. Add to his ultimate's active: Taric absorbs 40% of the damage done to nearby allies (1100 range & before their resistances), and takes the damage as half the damage in true damage.

I also feel like his passive needs a buff, but I am not sure what. Maybe after casting a spell, his next hit gain's 250 range (for a total of 400) and restores 10/15/20 mana, in addition to dealing it's current bonus damage?

Feel free to leave your suggestions in the comments below, and if you like any of my ideas, but want to suggest a slightly different twist on it, PLEASE comment below :P

• EDIT * Also, if this E edit is too powerful, maybe the second cast can be a skillshot?
• EDIT 2 * Another suggestion for E, if both of the previous suggestions don't work out. Make the second cast a skill shot with a cone extending out with 300-350 range in front of him.