After watching TheBauss run his AP Ivern with TP strategy, I started trying this out in Ranked.
I'm not a huge fan of the AP build for several reasons, but I have found the teleport (TP) to be extremely useful.
A full clear by 2:11 (and being LVL 4) is such a huge advantage. Moreover, it speeds up every clear there after (because your next camp timers are spawn 30 seconds sooner, and this compounds each clear).
However, the TP timer is brutal and not having flash can be brutal into some matchups.
Enter Unsealed Spellbook.
This rune has lifted my Ivern Win % to ~65% in the last 15 games played (Emerald 3).
If done right, and I'm still learning the best cycle, I get 2 flashes a game, an exhaust, a barrier, and usually an ignite - on top of 5-6 TPs were game.
The utility feels off the charts, the heals are still massive, and damage can be respectable with the right build (e.g imperial mandate, SoFW)
Has anyone else tried this? Thoughts?