Tree of Redemption

Defender
{T}: Exchange your life total with Tree of Redemption's toughness.

Tree of Perdition

Defender
{T}: Exchange target opponent's life total with Tree of Perdition's toughness.

Each creature assigns combat damage equal to its toughness rather than its power.

Outlast {1}{B} ({1}{B}, {T}: Put a +1/+1 counter on this creature. Outlast only as a sorcery.)

Exile target creature. Its controller gains life equal to its power.

Giant Ox crews Vehicles using its toughness rather than its power.

({T}: Add {W}, {B}, or {G}.)
Indatha Triome enters tapped.
Cycling {3} ({3}, Discard this card: Draw a card.)

At the beginning of your upkeep, you gain 1 life.

Whenever you cast a blue, black, or red spell, you gain 1 life.

Target creature gets +0/+5 and gains reach until end of turn. (It can block creatures with flying.)