Mages' Contest [Invasion] Yanling Set: Gladiator's Assault Card type:

Set: Gladiator's Assault Card type: Quick Play Spell Rarity: Common Attack: 0 Defense: 0 Return 1 "Neos" Fusion Monster you control to the Fusion Deck

but measures of sanity among planeswalkers are hard to come by

you may search your library for an Aura card with enchant creature

Set: Dark Revelation Volume 4 Card type: Quick Play Spell Rarity: Common Attack: 0 Defense: 0 Activate only while there is a face-up "Elemental Hero Bubbleman" on the field

but I say the best way is all smashed together between two slug chips

Mages' Contest [Invasion] Yanling Set: Gladiator's Assault Card type:Set: Invasion Type: Instant Rarity: Rare Cost: {1}{R}{R} You and target spell's controller bid life. You start the bidding with a bid of 1. In turn order, each player may top the high bid. The bidding ends if the high bid stands. The high bidder loses life equal to the high bid. If you win the bidding, counter that spell.