This is a good change, IMO. However, it does not solve the lack of use of SoR in other elements than time. I still believe it would be an improvement to be able to use it on permanents.
All permanents with activated abilities are:
- Catapult: laughable application, won't see use here.
- Pulverizer: this is intresting. Would work nice for earth decks, and it's not really overpowered either.
- Trident: this is intresting too. Would work wonders to improve Trident's usefulness, since Water also has many other possible applications for Shard of Readiness.
- Owl's Eye: investing a card on this is probably not worth it. You're better off with another pillar if you're worried about OE's skill cost.
- Sundial: assuming the time bonuses would still apply, upped sundial effectively costs only 3 :other quanta and gives two cards before disappearing. Hardly overwhelming.
- Eternity: very powerful. Double RT allows for some bad deck manipulation shenanigans, instant activation is evil, would be pretty powerful.
- Hourglass: useful but not broken, you're essentially using a Precognition costing two more quantas and granting a different side-effect. It pays for itself in two turns, though, which is rather good. Still, not the most useful application.
- Lobotomizer: not really useful here...
- Mindgate: same as Owl's Eye, if you're worried about the skill cost, add more pillars.
All in all, granting access to permanents would slightly buff Pulverizer and Trident, while still benefiting Time the most. Not sure this is a good idea.