Baptiste, Combat Medic

{1}{w}{u}{r}: Create an artifact equipment named immortality field which says 'When this artifact
enters the battlefield equip it to a creature, if a creature equipped by immortality field would die, instead sacrifice immortality field'
{1}{w}: Baptiste gains +0/+2 until end of turn
{3}{w}{u}{r}: Create a legendary artifact with
vanishing 1 named amplification matrix, which
says 'Whenever a creature you control attacks,
double its power until end of combat.'