7 mana is really expensive for a commander, however, and 6 isnt much better from Phylath, so Id recommend playing a lot of ramp and card draw if you elect to build decks around these legendary creatures
You won't be able to gain life during your end step in time to have the ability trigger
Big Blue concept decks built around Stasis and/or Time Elemental were happy to see those two cards reprinted as well
Aang, Airbending Master Aang, Airbending Master makes experience counters a real threat by turning each one into token value every upkeep
By playing this on a turn you know youre going to be lots of questing, you could significantly knock your opponent back
Its only when we consider the card in practice, and the flavor text, that we realize the victim is probably a corpse already