Enchant creature

When Dragon Mantle enters, draw a card.

Enchanted creature has ": This creature gets +1/+0 until end of turn."

When this enchantment enters, if you control a creature with power 4 or greater, draw a card.

Creatures you control have trample. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.)

Whenever a creature you control with power 4 or greater enters, draw a card.

You don't lose the game for having 0 or less life.

As long as you have 0 or less life, all damage is dealt to you as though its source had infect. (Damage is dealt to you in the form of poison counters.)

, Sacrifice a creature: You gain 1 life and draw a card.