Sustaining Spirit

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
Damage that would reduce your life total to less than 1 reduces it to 1 instead.

Nature’s Chosen

Enchant creature you control
: Untap enchanted creature. Activate this ability only during your turn and only once each turn.
Tap enchanted creature: Untap target artifact, creature, or land. Activate this ability only if enchanted creature is white and is untapped and only once each turn.

Kaysa

Green creatures you control get +1/+1.

Enslaved Scout

: Enslaved Scout gains mountainwalk until end of turn. (It can’t be blocked as long as defending player controls a Mountain.)