Leona and Warmog's

Many of us are aware that tanks are stupid-strong this meta. I and a friend have been talking about how strong Warmog's is, and we thought up something:

60% of all the damage received over the past 5 or 6 seconds is stored in Warmog's passive. After 4 or 5 seconds out of combat, Warmog's releases the stored hp and heals you for that same 60% of damage taken.

This way, the poke an enemy tank receives isn't fully-healed in just a few seconds, turning the tank from an immortal being back into a potentially killable opponent.

As for Leona, she has a VERY tough time laning against enemy support tanks. We were talking about this as well, and came up with a similar idea to Thresh's hook:

E First cast: Momentarily snares any enemy champion hit. E Second cast: Dashes to the furthest enemy champion hit by this skill, and for the duration of Leona's dash all enemy champions hit are silenced.

Comment your opinions please.