Lotus Petal

{T}, Sacrifice Lotus Petal: Add one mana of any color.

Griselbrand

Flying, lifelink
Pay 7 life: Draw seven cards.

Flying
When Ashen Rider enters or dies, exile target permanent.

Target player reveals their hand. You choose a nonland card from it. That player discards that card. You lose 2 life.

Search your library for a card, put that card into your graveyard, then shuffle.

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

Search your library for a card, put that card into your hand, then shuffle.

Flying
As Iona, Shield of Emeria enters, choose a color.
Your opponents can't cast spells of the chosen color.

({U/P} can be paid with either {U} or 2 life.)
Look at target player's hand.
Draw a card.

Each player puts a creature card from their graveyard onto the battlefield.

Put target creature card from a graveyard onto the battlefield under your control. You lose life equal to its mana value.