Seeker's Armguard stacks should count toward cost of Zhonya's
See title. IMO, it would be more satisfying if the Armguard stacks were permanent somehow. My idea is to subtract the gold value of the stacks from the upgrade cost. This might require a base price increase for Zhonya's, though. It wouldn't be that good for players who just buy the large rod first mid-game, but it's mildly unsatisfying to build stacks that go away on upgrade.
I included a poll. The poll option character limit is absurdly low, but I hope that makes sense.