Magnetic Repulsion Wave

whenever a creature attacks, if it has power
2 or less remove it from combat
{u/b}{u/b}{u/b}{u/b}, {t}: this enchantment gains
"whenever a creature attacks Magnetic Repulsion Wave deals 1 damage to that creature", this ability costs {u/b} less for each planeswalker you control, if this ability
would cost {0}, its cost becomes "pay 2 life"