Wall of Fire [Alpha Edition] Human Ninja you may reveal your hand

you may reveal your hand and put all land cards from it onto the battlefield

Set: San Diego Comic-Con 2015 Type: Legendary Creature — Human Soldier Rarity: Mythic Cost: {W} At end of combat

Whenever another creature enters the battlefield under your control

Set: Legends Type: Instant Rarity: Uncommon Cost: {W} One or more target creatures become white until end of turn

If you sacrifice an Island this way

Wall of Fire [Alpha Edition] Human Ninja you may reveal your handSet: Alpha Edition Type: Creature Wall Rarity: Uncommon Cost: {1}{R}{R} Defender (This creature can't attack.) {R}: Wall of Fire gets +1 +0 until end of turn. Conjured from the bowels of hell, the fiery wall forms an impassable barrier, searing the soul of any creature attempting to pass through its terrible bursts of flame.