Such triggered abilities start with when or whenever. 2019-01-25 If you somehow control two Teysas, a creature dying causes abilities to trigger three times, not four
Acid-Spewer Dragon Acidic Slime Acidic Slime Aether Poisoner Aetherblade Agent Agent of the Fates Ahriman Akroma, Vision of Ixidor Alela, Artful Provocateur Alpharael, Dreaming Acolyte Ambush Viper Anhelo, the Painter Animus of Predation Ankle Biter Ankle Shanker Aphelia, Viper Whisperer Aragorn, Company Leader Archetype of Finality Archpriest of Shadows Argivian Avenger Arisen Gorgon Armed Assailant Arno Dorian Arnyn, Deathbloom Botanist Arvad the Cursed Ashnod the Uncaring Ashnod, Flesh Mechanist Assassin Initiate Astarion, the Decadent Atraxa's Skitterfang Atraxa, Grand Unifier Atraxa, Grand Unifier Atraxa, Praetors' Voice Aurora of Emrakul Aveline de Grandpr Aven Heartstabber Avenger of the Fallen Axebane Ferox Ayli, Eternal Pilgrim Baleful Eidolon Baleful Strix Bane-Marked Leonin Barrowgoyf Battlefly Swarm Bebop, Skull & Crossbones Bilious Skulldweller Bitterblade Warrior Bitterheart Witch Black Waltz No
Reclamation Sage is a pretty great place to start, as is Banishing Light
C Common Generation Shift X TRAP Target 1 face-up monster you control
If you're getting the whole Secret Lair, though, expect the foil set to be more expensive
