While the cost is high, this has the potential for time to completely wreck mono stalls like aether, though time can just keep rewinding and deck out long stalls too. Interesting concept, i cannot imagine the evil this would be in a modified form of Seism (he has too much time quanta anyway). I like the concept and think that time could get other spells too to decay / wear down opponents permanents over time. I suggest the cost is lowered, and has a slightly different effect. After this card is played, pillars and pendulums are treated as normal for 3 or 4 turns, then they are transformed into Ruined pillars. It fits the idea of aging a bit better and makes this card more practical.