Waterknot

Flying If you would gain life, you gain that much life plus 1 instead. This creature gets +2/+2 as long as you have 25 or more life.

Flying (This creature can't be blocked except by creatures with flying or reach.) Whenever one or more creatures you control attack, they gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.)

Enchant creature Enchanted creature gets +3/+3 and has flying.

Tap all creatures your opponents control. Creatures you control gain lifelink until end of turn.

Lifelink When this creature enters, put a +1/+1 counter on each other creature you control named Charmed Stray.

Cast this spell only if a creature is attacking you. Create three 1/1 white Spirit creature tokens with flying.

Double strike (This creature deals both first-strike and regular combat damage.)

Double strike Whenever this creature attacks, other creatures you control gain double strike until end of turn.