Burden of Dreams

V17

{0}: You may have a creature with toughness 10 or greater climb Burden of Dreams. If it's toughness was 17, you gain 4 life.

When Burden of Dreams is topped, tap it. It doesn't untap during your untap step. Put five +1/+1 on up to two creatures. You gain 20 life. You get an emblem with "Whenever you climb, you gain 5 life a proliferate twice."