Mithra, the Deadly One

When Mithra, the Deadly One enters the battlefield, create 3 1/1 ant token creatures with "when this creature deals damage to a player, that player loses half their life".
Landfall: Whenever a land enters the battle field, create 3 1/1 and token creatures. If you control 8 or more lands then, create 3 1/1 ant token creatures with "when this creature deals damage to a player, that player loses half their life". DD