Much like her former teacher, Glarb, Helga is mostly concerned with spells that cost four or more mana , but Helga narrows her focus to strictly creature spells
The fact that this affects all other players will force opponents to think twice before casting Think Twice
If you cast a spell using Malcolm, Alluring Scoundrel's last ability, you do so as part of the resolution of the ability
therefore, it can always function as an underpowered, on-turn Justice Prevails if needed
The games where this is going to rot at 1/1 will feel terrible, and the upside isn't so great as to make up for thathe's Volo for 2 mana cheaper
At the very least, you might buy some friends by stopping one person from wrathing the board, then ganging up on them