Aesrias, Hero of Iroas

Whenever a spell or permanent you control deals damage to an opponent, add {r} for each point of damage. Until end of turn, you don't lose this
mana as steps and phases end.
Whenever a spell or permanent you control
causes you to gain life, add {w} for each life gained.
Until end of turn, you don't lose this mana as
steps and phases end.