Aquastrand Spider is a common Creature — Spider Mutant card from Modern Masters 2015 (MM2), collector number 140. Current market price: $0.23 (foil $0.23), TCGplayer market prices via Scryfall.
Graft 2 (This creature enters with two +1/+1 counters on it. Whenever another creature enters, you may move a +1/+1 counter from this creature onto it.) {G}: Target creature with a +1/+1 counter on it gains reach until end of turn. (It can block creatures with flying.)