Aphetto Alchemist - [Foil, Retro Frame] Onslaught (ONS){T}: Untap target artifact or creature. Morph {U} (You may cast this card face down as a 2 2 creature for {3}. Turn it face up any time for its morph cost.) He brews trouble.

that player loses half their life

" —Seshiro the Anointed

Counter target instant spell

Those who seek to disturb the harmony of life will see their instruments taken from them

Their flesh is as sodden as the fens in which they live

Then that permanent's controller may sacrifice a land

Jehan Choo

Whenever a permanent becomes untapped

Players can acquire familiar D&D style character classes during the game which determine to some extent the cards they can play

where X is Esper Sentinel's power

At the beginning of your precombat main phase

Shrine of Enlightenment