Serpent Generator [Legends] Rise of the Eldrazi Set: Duel Decks Anthology Type:

Set: Duel Decks Anthology Type: Tribal Sorcery — Elf Rarity: Uncommon Cost: {3}{G} Create a 1/1 green Elf Warrior creature token for each Elf you control

or even the fear of death

For example

"If our foes will not listen to words

No more than two creatures can block each combat

Serpent Generator [Legends] Rise of the Eldrazi Set: Duel Decks Anthology Type:Set: Legends Type: Artifact Rarity: Rare Cost: {6} {4}, {T}: Create a 1 1 colorless Snake artifact creature token. It has "Whenever this creature deals damage to a player, that player gets a poison counter." (A player with ten or more poison counters loses the game.)