While I was camping, I played a ton of card games with my friends. One of those games was M:tG, and one of my decks was my Proxy-Made-Up cards deck. It turned out to be way too powerful, so I'll have to adjust those particular cards, but it got me thinking.
May I present:
John Egbert, Heir of Breath 2WU
Planeswalker - John
[+1] Return Target nonland permanent to it's owner's hand.
[-X] Exile John Egbert, Heir of Breath. He reenters the battlefield during your next upkeep with X+1 Loyalty tokens.
[-6] Return all target opponent's nonland permanents to their owner's hand.
<2>
Dave Strider, Knight of Time 1RRWW
Planeswalker - Dave
The multiple Planeswalker rule does not apply to Dave planeswalkers.
[+2] Players must attack Dave Strider, Knight of Time instead of you until your next turn.
[+1] Shuffle a random card from your graveyard into your library.
[-7] Place a Planeswalker Token that is a copy of Dave Strider, Knight of Time with 3 loyalty tokens onto the battlefield.
<3>
Rose Lalonde, Seer of Light 2WB
Planeswalker - Rose
[+1] Roll a six-sided die, where X is the result, Scry X.
[-1] Untap up to 3 target permanents you control.
[-X] Deal X damage each to X target creatures.
<2>
Jade Harley, Witch of Space 3G
Planeswalker - Jade
[+2] Add or remove a +1/+1 counter from target creature.
[+1] Put a 1/1 green frog token onto the battlefield for each planeswalker you control.
[-4] Exile target permanent.
<3>
Jake English, Page of Hope 2W
Planeswalker - Jake
[+1] Prevent all damage to target creature until your next upkeep.
[-3] Add 2 mana of any combination to your mana pool.
[-8] Place an emblem with "All spells you cast cost 1 colored mana of your choice less to cast. This does not affect colorless costs."
<1>
Dirk Strider, Prince of Heart 4W
Planeswalker - Dirk
[+1] Creatures you control get +1/+1 until end of turn.
[-X] Creatures you control get +X/+X until end of turn.
[-2] Destroy target permanent, even if it is indestructible. It cannot be regenerated.
<2>
Roxy Lalonde, Rogue of Void 3B
Planeswalker - Roxy
[+2] Target creature is unblockable until end of turn.
[-X] Return target nonland card with converted mana cost X from your graveyard to your hand.
[-X] Search your library for a nonland card with converted mana cost X and put it into your graveyard, then shuffle your library.
<1>
Jane Crocker, Maid of Life 3GG
Planeswalker - Jane
[+2] Search your library for a forest and put it onto the battlefield. Then shuffle your library.
[+1] Until your next upkeep, if Jane Crocker, Maid of Life would have no loyalty counters, place a loyalty counter on her.
[-2] Place a token enchantment onto the battlefield with "Sacrifice this enchantment as an instant: Regenerate target creature".
<2>
Karkat Vantas, Knight of Blood 2UR
Planeswalker - Karkat
[+3] Put a +1/+1 counter on target creature.
[-2] If target creature shares a color or subtype with a creature you control, gain control of that creature until end of turn. That creature gains haste.
[-4] Target player discards their hand.
<2>
Terezi Pyrope, Seer of Mind 4U
Planeswalker - Terezi
[+1] Flip a coin. If it comes up heads, scry 2. If it comes up tails, draw a card.
[+1] Tap target creature or destroy target tapped creature.
[-4] Place a 2/2 red Dragon token onto the battlefield.
<2>
Sollux Captor, Mage of Doom 2UR
Planeswalker - Sollux
[+2] Draw a card, then target opponent discards a card.
[-2] Each player draws 2 cards, then each opponent discards 2 cards.
[-2] Destroy 2 target permanents, then scry 2.
<2>
Gamzee Makara, Bard of Rage 4R
Planeswalker - Gamzee
If Gamzee Makara, Bard of Rage would have no loyalty counters, put a loyalty counter on him.
[+1] Do 1 damage to target creature or player. If damage was dealt to you this turn, deal 5 damage instead.
[-4] Destroy target permanent.
<1>
Nepeta Leijon, Rogue of Heart 2WG
Planeswalker - Nepeta
[+1] Choose one: Gain 2 life, or regenerate target creature. Then gain 1 life.
[-2] Untap each creature you control.
[-5] Place a 2/2 white spirit cat token with vigilance onto the battlefield.
<1>
Tavros Nitram, Page of Breath 2B
Planeswalker - Tavros
[+1] Place a loyalty counter on target planeswalker.
[-2] Place a 1/1 black horror token named "fiduspawn" onto the battlefield.
[-3] Exile target nonland permanent.
<2>
Vriska Serket, Thief of Light 7B
Planeswalker - Vriska
Vriska Serket, Thief of Light costs 1 less to cast for each spider you control.
[+2] Roll an 8-sided die. Where X is the result, do X damage to target creature.
[-1] Next time yo roll a die, you may change it's result to the position you choose.
[-8] Roll eight 8-sided dice. For each 8 rolled, draw a card and do 2 damage to target creature. If all eight dice are 8s, also deal 8 damage to target player.
<2>
Eridan Ampora, Prince of Hope 4W
Planeswalker - Eridan
[+2] Add W to your mana pool.
[-1] Move a +1/+1 counter from target creature to target creature you control.
[-6] Creatures target player controls get -2/-2 and are indestructible until end of turn.
<3>
Equius Zahhak, Heir of Void 3R
Planeswalker - Equius
[+1] Equius Zahhak, Heir of Void becomes a creature until end of turn, with power and toughness equal to his loyalty. He then fights target creature.
[-1] Place a 1/1 artifact construct token onto the battlefield.
[-3] Place a 2/2 colorless centaur token named "Musclebeast Butler" onto the battlefield.
<3>
Aradia Megido, Maid of Time 4UU
Planeswalker - Aradia
[+1] Place a 2/2 artifact creature token with flying named "Aradiabot" onto the battlefield.
[+/-0] Sacrifice all Aradiabots you control. Deal damage equal to twice the number of sacrificed Aradiabots to target player.
[-5] Discard your hand and draw 7 cards.
<3>
Feferi Peixes, Witch of Life 3W
Planeswalker - Feferi
[+2] Target creature has protection from Black and Red until your next upkeep.
[-1] Tap target creature. If it has power 5 or more, destroy it.
[-6] Gain life equal to your Devotion to white and green.
<1>
Kanaya Maryam, Sylph of Space 3B
Planeswalker - Kanaya
[+1] Exile a creature from your graveyard. Kayana Maryam, Sylph of Space gains additional loyalty equal to it's toughness.
[+1] Put a 1/1 green frog token on the battlefield.
[-6] Creatures you control gain lifelink until end of turn. If they already had lifelink, they gain +2/+2 instead.
<2>
Rufioh Nitram, Rogue of Breath 2UB
Planeswalker - Rufioh
Whenever a creature you do not control dies, Rufio Nitram gains 2 loyalty.
[+/-0] Target creature gains flying until end of turn.
[-X] X target creatures gain lifelink until end of turn.
<2>
...WIP
Finished, but to be revealed later (AKA when I finish the trolls).
Preview:
█████████, ████ of ████ 3WUBRG
Planeswalker - █████████
At the beginning of ████████, you may ██████ ████████, ████ of ████. If you do, he ██████ ██ ███ ███████████ ████ 1 ███████ ███████.
[+1] ████ 2 ████.
[-12] Transform █████████, ████ of ████.
<8>
████ ███████ <TRANSFORMED>
Planeswalker - █████████
[+3] ████ █ ██████ ██ ██████ ███████, ██████, or ████████████.
[+/-0] Exile Target Creature.
[-8] ████ ███████ ████ █████ ████ ███.
████████, ████ of █████ 1WUBRG
Planeswalker - ████████
[+2] ███████ ███ ██████ ██ ██████ ███████ ████ ████.
[+1] ████ 3 ████.
[-12] Transform ████████, ████ of █████
<4>
█████████ ██ ███████ <TRANSFORMED>
Planeswalker - ████████
[+X] Where X is ████ ██████ ██ █ █████ ██ ████ ██████, ████ X ████.
[-2] ██████ ██████ █████████ ████ █████ ██ ███ ███████████.
[-8] ██████ ██ ████ ██████████ █████ ████ "█████████ █████████ ██ ██████████████" ██ ████ █████████████ █████████ ███ ██████.