Kyren Sniper

At the beginning of your upkeep, you may have this creature deal 1 damage to target player or planeswalker.

Plains

Fugitive Wizard

Mountain

Mons's Goblin Raiders

Lavamancer's Skill

Enchant creature
Enchanted creature has "{T}: This creature deals 1 damage to target creature."
As long as enchanted creature is a Wizard, it has "{T}: This creature deals 2 damage to target creature."

Hermetic Study

Enchant creature
Enchanted creature has "{T}: This creature deals 1 damage to any target."

Rootwater Hunter

{T}: This creature deals 1 damage to any target.

Prodigal Sorcerer

Island

Call to Glory

Untap all creatures you control. Samurai creatures you control get +1/+1 until end of turn.

Fire Whip

Enchant creature you control
Enchanted creature has "{T}: This creature deals 1 damage to any target."
Sacrifice this Aura: It deals 1 damage to any target.