+1: Until end of turn, up to one target creature gets +1/+1 and gains first strike, vigilance, and lifelink.

−2: Put a +1/+1 counter on each creature you control and a loyalty counter on each other planeswalker you control.

−7: You get an emblem with "If a source would deal damage to you or a planeswalker you control, prevent all but 1 of that damage."

Enchant creature

Enchanted creature has lifelink and "Whenever a creature an opponent controls dies, put a +1/+1 counter on this creature." (Damage dealt by a creature with lifelink also causes its controller to gain that much life.)

Vigilance

: Creatures you control get +2/+2 and gain first strike and lifelink until end of turn.

, Exile Soul of Theros from your graveyard: Creatures you control get +2/+2 and gain first strike and lifelink until end of turn.