For those interested, I think Peter was planning to rebuild his Tempo deck to something like this:
20 Island
4 Snap
4 AEther Burst
4 Unsummon
4 Memory Lapse
2 Time Ebb
2 Remand
4 Rhystic Study
4 Reality Strobe
4 Kederekt Leviathan
4 Deep-Sea Kraken
4 Riftwing Cloudskate