Created some funny Super Mario Bros 3 Cards

[LennoxLewis86]

Magic Mushroom (uncommon)
3 - Artifact
T, sacrifice Magic Mushroom: Put a counter on target creature. As long as it has this counter, it's power and toughness double. Whenever the creature is dealt damage, prevent the damage and remove all counters from that creature.

Fire Flower (uncommon)
3 - Artifact
T, sacrifice Fire Flower: Put a counter on target creature. As long as it has this counter, it's power and toughness double and it gains: ''1R: this creature deals 1 damage to target creature or player.'' Whenever the creature is dealt damage, prevent the damage and remove all counters from that creature.

Magic Leaf (uncommon)
3 - Artifact
T, sacrifice Magic Leaf: Put a counter on target creature. As long as it has this counter, it's power and toughness double and it gains flying. Whenever the creature is dealt damage, prevent the damage and remove all counters from that creature.

Hammer Brother Suit (rare)
T, sacrifice Hammer Brother Suit: Put a counter on target creature. As long as it has this counter, it's power and toughness double and it gains deathtouch. It also gains: ''2B: this creature deals 1 damage to target creature or player.'' Whenever the creature is dealt damage, prevent the damage and remove all counters from that creature.

Frog Suit (rare)
T, sacrifice Frog Suit: Put a counter on target creature. As long as it has this counter, it's power and toughness double and it gains islandwalk and islandhome. Whenever the creature is dealt damage, prevent the damage and remove all counters from that creature.

Tanooki Suit (mythic)
3 - Artifact
T, sacrifice Tanooki Suit: Put a counter on target creature. As long as it has this counter, it's power and toughness double and it gains flying. It also gains: ''2G: this creature becomes tapped and indestructible until end of turn. If the creature is already tapped when you activate this ability, flip a coin. If you lose the flip, sacrifice the creature.'' . Whenever the creature is dealt damage, prevent the damage and remove all counters from that creature. If the creature is in indestructible form when it is dealt damage, this particular counter stays.

Starman (rare)
2 - Artifact
T, sacrifice Starman: Put a counter on target creature. As long as it has this counter, it gains hexproof, deathtouch and indestructible. Remove the counter at end of turn.

Juglem's Cloud (mythic)
2UUU - Instant
End the turn.

Enchanted Musicbox (rare)
2 - Artifact
T, sacrifice: Tap all creatures. Those creatures don't untap during their controller's next untap step. Instead, they untap during their controller's second next untap step.

1-up Mushroom (rare)
0 - Artifact
T, sacrifice: You gain 1 life.
''What did you expect it would do?!''

[Oath of Happy]

There are awesome!  i would make the starman a common.

1-up Mushroom (rare)
0 - Artifact
T, sacrifice: You gain 1 life.
''What did you expect it would do?!''
 
I thought that this would say "If your life total would be reduced to less than one, sacrafice 1-up Mushroom and reset your life total to 20.  Remove all damage from the stack.

[Wagner]

I think you could do without the whole "power and thoughness double" thing. It's counterintuitive that your thoughness doubles but that damage is prevented anyway, and a big Mario doesn't do more damage than a small Mario. I'd just put the 1 time damage prevention clause.

Also, the Hammer was more powerful that the fire flowe, so I would make it do 2 damage. And remove deathtouch to add extra toughness or protection from red, something to show it can crouch and block fireballs.

Also, make the toy boot!

[Norm4eva]

Also, make the toy boot!

Kuribo's Shoe 
Legendary Artifact - Equipment

Protection from Spikes (...get it?)

Whenever equipped creature blocks or becomes blocked by a creature without flying, it gains deathtouch until end of turn.

: Equipped creature gains flying until end of turn.

Equip

"Everybody cheat but meeee!" - Charles Martinet