Krishna Equip Equipped creature gets +2/+2, has lifelink and "Other commanders you control get +2/+2 and have lifelink," and is a Performer in addition to its other types
Artifact removal is a wonderful thing to have in a deck but often costs you power to do so, you will downgrade a solid threat into a Torch Fiend or something and although it will outright save you or win for you in a couple of games it will be highly underwhelming in the rest
Open the Vaults: Play it after you have exiled all or most of your opponent's graveyards
As the games go longer, the windows for getting damage on your opponent will be smaller
Also, pulling a land out of your deck, or drawing that card off of this spell ensures your hand wont be hurting too much after it resolves
If your character has the Ward trait, they cannot be selected for single-target effects