Norritt

Creature - Imp 1/1, 3B (4)
{T}: Untap target blue creature.
{T}: Choose target non-Wall creature the active player has controlled continuously since the beginning of the turn. That creature attacks this turn if able. If it doesn't, destroy it at end of turn. Play this ability only before attackers are declared.¹
Illus. Mike Raabe

Crystal Keep Rulings Summaries

• If the creature was not controlled continuously, it is not a legal target. [D'Angelo 2007/07/15]
• The creature is destroyed if it does not attack because it simply cannot do so legally. For example, a Sea Serpent will be destroyed if it cannot attack because the opponent has no islands. [Aahz 1995/07/01]
• You can use this effect on a creature you know won't be able to attack. For example, you can use it on a tapped creature. [Aahz 1995/07/01]
• Note - Also see Must Attack, Rule 502.2.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard
Printings (1/6)	Ice Age (Common)