Kadril's Magma-mace

When a creature with toughness four or more
enters play under your control, you may attach
Kadril's Magma-mace to it. If you do, Kadril's
Magma-mace deals 2 damage to each player.
Do this only once per turn.
Equipped creature gets +2/+2 and has haste and trample.
Equip {4}