mtg.wtf

Draw two cards, then discard two cards. Untap up to three lands.

Creatures don't untap during their controllers' untap steps.
Whenever a creature enters, untap all creatures.

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Hideaway 4
Shelldock Isle enters tapped.
{T}: Add {U}.
{U}, {T}: You may play the exiled card without paying its mana cost if a library has twenty or fewer cards in it.

Whenever you gain life, you may pay {X}, where X is less than or equal to the amount of life you gained. If you do, draw X cards.