Debtors' Transport

This creature can't be blocked. When this creature enters, return a creature you control to its owner's hand.

Flying Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for 1 or one mana of that creature's color.) Choose one — • Create a 2/2 green and white Elf Knight creature token with vigilance. • Destroy target artifact or enchantment.

Target creature you don't control gets -4/-0 until end of turn. Overload 2U (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for 1 or one mana of that creature's color.) Flying

(T: Add W or B.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

Whenever a creature you control attacks alone, it gets +X/+X until end of turn, where X is the number of creatures you control.

First strike (This creature deals combat damage before creatures without first strike.) Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)