Therefore, when multiples of your Digimon with the [Free] trait would be deleted other than by one of your effects, you can only use this card's effect to digivolve 1 of those Digimon
treat it as a Union monster
2 Booster amplifies the signal received by outside antenna
This is why you wont die if you target yourself with Lightning Helix, even if youre on one life: eliminating players who are out of life is also an SBA, so as long as the Helix heals you back to a positive total before it finishes resolving and SBAs are next checked, youll be okay
If you're new, Craterhoof is one of the best closers in MTG and has dished out many a loss in Commander since it was printed
For most attacks, it will not matter what order you do things in, but if you have to work your way through a really complicated attack, follow these steps in order and you should be fine