Icing Manipulator

The +1/+1 counters/Food tokens are artifacts, so anything that counts artifacts will count them. They can be tapped, untapped, sacrificed, and so on. They can even attack and block if you find a way to make them creatures.

The +1/+1 counters that are also Food tokens are still +1/+1 counters. They should stay on whatever permanent they were on, even though they become permanents themselves. That acorn symbol at the bottom of the card isn't messing around here.

Each die is identified by the number of faces it has. A six-sided die is a die with six equally likely outcomes: 1, 2, 3, 4, 5, and 6. The roll must be fair. Although physical dice are recommended, digital substitutes are allowed except in cases where the physical die is required for the effect.

If an ability triggers "whenever you roll a die," it will trigger whenever you roll any die, including the planar die. This is a change from previous Un- rules. Some abilities use the result to determine part of the effect. If you get a non-numerical result (currently just the planar die, but the future is long), that part of the effect won't do anything.

+1/+1 counters aren't "attached" to the creatures they're on like an Aura or Equipment is, so a +1/+1 counter/Food token that becomes a creature stays on the creature its on. It still gives that creature a +1/+1 bonus. It doesn't give itself a +1/+1 bonus. Note that +1/+1 counters/Food tokens don't have a mana cost, so their mana value is 0. Many ways of turning them into creatures will turn them into 0/0 creatures, so unless something else is raising their toughness, they'll immediately spoil . . . er, die.

If a die is rerolled, the original roll essentially never happened: it doesn't cause any abilities to trigger, and no effect that cares about die rolls will consider it.