spheal pokemon card full art 199/191 Common Retreat cost Sphealing pretty good about this

In my experience, the Game Changers that win the most games are the ones that generate persistent card advantage: Rhystic Study, Smothering Tithe, Necropotence

When threats are selected for their guaranteed impact on resolution, and forcing through pressure is more important than playing for card advantage, the preemptive answer of lock effects is usually the only viable option

If its a permanent card, they put it onto the battlefield. You can even use this on your own stuff if you have faith that the top card of your library is something powerful

1 Viridian Emissary

It turns any creature dying into a 1/1 Rat token