Budget Alternatives to Boromir, Warden of the Tower

Resistance Reunited $0.07 1W · Instant Target creature gets +2/+2 until end of turn. Silverflame Ritual $0.11 3W · Sorcery Put a +1/+1 counter on each creature you control. Now for Wrath, Now for Ruin! $0.16 3W · Sorcery Put a +1/+1 counter on each creature you control. Invert the Skies $0.20 3G/U · Instant Creatures your opponents control lose flying until end of turn if {G} was spent to cast this spel... Frontline Medic $0.23 2W · Human Cleric Battalion — Whenever this creature and at least two other creatures attack, creatures you control... Rootborn Defenses $0.23 2W · Instant Populate. Stalwart Pathlighter $0.27 2W · Human Soldier Vigilance Gavony $0.32 Innistrad All creatures have vigilance. Duty Beyond Death $0.33 1W · Instant As an additional cost to cast this spell, sacrifice a creature. Dauntless Escort $0.34 1GW · Rhino Soldier Sacrifice this creature: Creatures you control gain indestructible until end of turn. Selfless Glyphweaver // Deadly Vanity $0.35 Human Cleric // Sorcery Exile this creature: Creatures you control gain indestructible until end of turn. Plaxmanta $0.38 1U · Beast Flash King Darien XLVIII $0.43 1GW · Human Soldier Other creatures you control get +1/+1. Hero of Goma Fada $0.44 4W · Human Knight Ally Rally — Whenever this creature or another Ally you control enters, creatures you control gain ind... Lavinia, Azorius Renegade $0.59 WU · Human Soldier Each opponent can't cast noncreature spells with mana value greater than the number of lands that... Selfless Spirit $0.59 1W · Spirit Cleric Flying War of the Last Alliance $1.15 3W · Saga I, II — Search your library for a legendary creature card, reveal it, put it into your hand, then... Vexing Bauble $1.28 1 · Artifact Whenever a player casts a spell, if no mana was spent to cast it, counter that spell. Unbreakable Formation $1.29 2W · Instant Creatures you control gain indestructible until end of turn.