mtg gatewatch cards Oath Of The Booster Box art and regular versions of the Wastes (twice) Witness the End 82/184 Oath

When attacking, you can sacrifice blocked Saprolings for free to boost all the other Saprolings that werent blocked before damage is applied to your opponent

With this in mind, its no wonder that some MTG players want to fight back against the growing tide of crossovers

By way of the graveyard, of course

For example, if you want to cast Fallaji Wayfarer but you only have 3 mana available, you can use one mana to cast a Birds of Paradise and then immediately tap the Bird to help cast the Wayfarer

No matter the result (other than zero or less of course) you'll get something advantageous to you for only two mana