{Tree of Redemption}
when you exchange your life total for its toughness, does that mean that your life total becomes its new toughness? ex. your life is 27, then you use it's ability. your life becomes 13 and its toughness becomes 27. is that right?
Yes. The numbers are exchanged.
RESOLVED
{Sheltering Word} ?
Also just remember the following...
When the ability resolves, {Tree of Redemption}'s toughness will become your former life total and you will gain or lose an amount of life necessary so that your life total equals {Tree of Redemption}'s former toughness. Other effects that interact with life gain or life loss will interact with this effect accordingly.