The Elder Scrolls

Whenever a creature dealt combat damage by a creature you control this turn dies, sacrifice Shrine to Azura and put a legendary artifact named "Azura's Star" onto the battlefield. It has "Whenever a creature dies, put a soul counter on this", and "remove a soul counter from this: Add to your mana pool."

Whenever a creature you control deals combat damage, put a victory counter on Shrine to Boethia.
When Shrine to Boethia has ten or more victory counters on it, sacrifice it and put a legendary Equipment artifact named Goldbrand onto the battlefield. It has "Equipped creature gets +4/+2 and has double strike" and "equip ."

When Shrine to Clavicus Vile enters the battlefield, put a black and white legendary 4/4 Warrior creature token named Umbra onto the battlefield under target opponent's control. When that creature dies, sacrifice Shrine to Clavicus Vile and put a legendary Equipment artifact named "Masque of Clavicus Vile" onto the battlefield. It has "Equipped creature gets +5/+5 and has hexproof" and "equip ."

Whenever a creature attacks you, sacrifice Shrine to Molag Bal and put a Legendary Equipment artifact named "Mace of Molag Bal" onto the battlefield. It has "Equipped creature gets +3/+2 and has lifelink" and "Equip ."