Effects that modify a creature's power and/or toughness, such as the ones created by Titanic Growth or a +/1+1 counter, will apply to the creature no matter when they started to take effect
The twist is that instead of crewing them each turn, you permanently convert them into creatures once youve accumulated enough charge counters
Finding the card you need for 1 mana at instant speed is a bargain, and you can likewise set the top card of your library for many combos
She's a five-mana, five-color commander, and her first line of text is that the legend rule doesn't apply to Slivers you control
Cackling Imp Okay, okay, look, hear me out
If you can surround it with a high enough density of instants and sorceries, it ought to be very strong, but you need to build around it to an extent