Altnor the Gnarled

Altnor the Gnarled costs {1} less to cast per
1 life you gained this turn.
Deathtouch, Lifelink
At the beginning of your end step do one where
X is the amount of life gained this turn :
• Destroy up to X target artifacts/ enchanments.
• Put X +1/+1 counters on target creature.
• Return target creature with mana value
X or less from your graveyard to your hand.