Sacred Foundry - [Borderless] Ravnica Remastered (RVR)({T}: Add {R} or {W}.) As Sacred Foundry enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Walking Ballista enters the battlefield with X +1/+1 counters on it

"The Knowledge Pool knows

you may choose two

Whenever one or more creatures attack

Dreams are tempting because one is so powerful in them

[−3]: Nicol Bolas

Its power is equal to that creature's power and its toughness is equal to that creature's toughness

) I — Up to one target creature can't block for as long as you control There and Back Again

Threshold — Create four 2/2 green Bear creature tokens instead if seven or more cards are in your graveyard

and token cards

When Bane of Progress enters the battlefield

Corrupted — Create an X/X green Phyrexian Wurm creature token with trample and toxic 1