Got an idea how to change focus while talking on chat and people seemed to like it:
Instead of focusing itself, everything else is focused on the shard:
Basically, all targeted effects are focused on this creature. Perma control, creature control, everything that needs targeting.
It could have
5+X HP, where X is your
divided by 5, allowing it to have up to 20 HP. The HP needs careful balancing since
every targeted effect would be blocked/redirected. It needs to be useful but not overpowered, like the current shard. Permanent control - since it is originally not meant to deal damage to creatures - should do about 10-15 to the shard.
If this is found too powerful, maybe limit the focus to one side of the field - so your opponents can still target themselves with Purify if they want to.
This change would be nice to limit control and to provide creature and permanent protection outside of the few elements that have it.