Because every card from Foundations is planned to stay legal in Standard until at least 2029, your investment remains relevant for many years
In addition there are effects that green can use when the opponent's such as KOing the character or preventing the character from activating on the opponent's refresh phase
A 2/3 Spirit Warrior with flying and vigilance for four mana, Ranar allows the first card you foretell each turn to be foretold for free
Creature Artifact - Angel Creature (CTRL to add secondary) Enchantment Luminarch Ascension At the beginning of each opponent's end step, if you didn't lose life this turn, you may put a quest counter on this enchantment
And should your necromantic plans fail, you still have a powerful card advantage engine and a threat growing more potent each turn
The starting life clause is the whole point: This black board wipe gets turned on very easily in Commander once somebodys been smacked around, although it may be too slow to be useful as a speed bump against aggro decks in the early game