mtg return card from exile (Amonkhet) FlashbackSacrifice three creatures Could I use this to

It only costs three generic and two White Mana, and it makes so anytime you gain life, all creatures you control get a +1 Counter

The Eldrazi Unbound Commander Masters Commander Deck set includes 1 ready-to-play Colorless deck of 100 Magic cards (2 Traditional Foil Legendary Creature cards, 98 nonfoil cards), a 2-card Collector Booster Sample Pack, 1 foil-etched Display Commander (a thick cardstock copy of the commander card with foil etched into the cards border and art), 10 double-sided tokens, 1 deck box (can hold 100 sleeved cards), 1 Life Wheel, 1 strategy insert, and 1 reference card

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Archangel of Tithes This is an angel who flies around and generally makes your life more difficult

Because Dryad only finds basic Forest, it will be most at home in a Green-heavy deck, which is a nice way to protect against giving 3+ color decks access to even more ramp