Roiling Vortex (0156) [Zendikar Rising]

Enchantment · {1}{R}

At the beginning of each player's upkeep, this enchantment deals 1 damage to them.
Whenever a player casts a spell, if no mana was spent to cast that spell, this enchantment deals 5 damage to that player.
{R}: Your opponents can't gain life this turn.

Zendikar Rising #156 · rare · Art by Campbell White