Darksteel ForgeArtifacts you control have indestructible. (Effects that say "destroy" don't destroy them. Artifact creatures with indestructible can't be destroyed by damage.)

Then you gain 3 life if that player has more life than each other player

It can't be regenerated

At the beginning of each end step

Spells you control can't be countered

you may create a token that's a copy of a nonlegendary enchantment you control

After this phase

Artifacts you control have indestructible

Dark Depths enters with ten ice counters on it

: Add one mana of any color in your commander's color identity

Reveal the top card of your library and put that card into your hand

choose a creature type

When Dark Depths has no ice counters on it