Rootcast Apprenticeship

The "choose three, repeats allowed" template is where charms grow up: instead of picking one of a few modes, you buy three activations off a menu and can stack them. That structure is what makes this worth reading closely. All four modes are cheap on their own and none is a bomb, but the repeat clause turns the card into a dial. Point all three charges at the same creature and you have six +1/+1 counters for four mana. Point them at a token you already control and you are triple-copying it in a single sorcery, which is the mode that rewards a deep board: it needs a token worth duplicating, and if you already have a fat Squirrel or a keyword-loaded creature token sitting around, "make three more of that" is a very different card than the counters or the Squirrel-generation mode read as. Three of the four modes are green board-building actions, so the bulk of the flexibility runs along one axis: grow wide, grow tall, or copy what you have. The fourth mode is the odd one out, an artifact-sacrifice bolted on so the card is never fully dead against a value engine, though it hands the opponent the choice of which artifact goes and can be stacked to strip up to three. The ceiling lives entirely in what you already have in play when you cast it.